N₃, or nitrogen trioxide, is a chemical compound that contains one nitrogen atom and three oxygen atoms. The Lewis structure of N₃ shows how the valence electrons of each atom are arranged and shared in the molecule.
To draw the Lewis structure of N₃, we need to follow these steps:
Determine the total number of valence electrons in the molecule.
The total number of valence electrons is the sum of the valence electrons of each atom in the molecule. Nitrogen has five valence electrons, and each oxygen has six valence electrons, so the total number of valence electrons in N₃ is:
5 + (3 x 6) = 23
Determine the central atom.
The central atom is the atom that is bonded to the other atoms in the molecule. In N₃, nitrogen is the central atom, as it is bonded to all three oxygen atoms.
Connect the atoms with single bonds.
In N3, nitrogen is bonded to each oxygen atom with a single bond. This uses up three of the 23 valence electrons.
Arrange the remaining valence electrons to satisfy the octet rule.
After the single bonds are formed, we have 20 valence electrons left. Oxygen has six valence electrons, and nitrogen has five valence electrons. To satisfy the octet rule for each atom, we need to form double bonds between nitrogen and two of the oxygen atoms. This uses up four more valence electrons.
The remaining two valence electrons are placed on the nitrogen atom, which now has an incomplete octet. However, it is acceptable for nitrogen to have an incomplete octet in some cases.
Therefore, the Lewis structure of N3 is:
O
╱ \
O = N = O
╲ /
O
In this structure, each atom has a complete octet, except for nitrogen, which has seven valence electrons. This structure shows that N3 has a linear shape, with the nitrogen atom in the center and the three oxygen atoms bonded to it. The Lewis structure also helps us to understand the chemical behavior and properties of N3.
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Transcribed Image Text:What is the formal charge of an oxygen atom that forms three bonds and has one lone pair? -2 -1 +1 +2
It will have a formal charge of 1+ if it has three bonds in addition to one lone pair, like the hydronium ion does. When an oxygen atom contains one link, two lone pairs, and one unpaired (free radical) electron, it has a formal charge of zero and can also exist as a radical.
When an oxygen atom contains two bonds and two lone pairs, it is commonly said to have a formal charge of zero. Alternative configurations include oxygen with 3 lone pairs and 1 bond with a formal charge of 1+, and oxygen with 3 bonds and 1 lone pair and a formal charge of 1.With three bonds, what charge does oxygen have. Typically, oxygen has two bonds; nevertheless, on occasion.
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The Formal charge on the oxygen atom will be +2.
The formal charge of an atom is the difference between the number of valence electrons in the free atom and the number of electrons assigned to that atom in a Lewis structure.
In the structure, the oxygen atom is bonded to three hydrogen atoms and has one lone pair of electrons. To calculate the formal charge of the oxygen atom, we first need to determine the number of valence electrons in an oxygen atom, which is 6.
To assign electrons to the oxygen atom in the Lewis structure, we can follow the octet rule, which states that atoms tend to gain, lose, or share electrons in order to achieve a full outer shell of eight electrons (except for hydrogen, which only needs two). In the Lewis structure shown above, the oxygen atom has four valence electrons assigned to it: one from each of the three bonds and one from the lone pair. Therefore, the formal charge on the oxygen atom is:
Formal charge = valence electrons - assigned electrons
= 6 - 4
= +2
Therefore, the formal charge of the oxygen atom in this Lewis structure is +2.
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what are the signs for the changes in enthalpy for the three steps involved in forming a solution?
The enthalpy changes associated with formation of a solution can be divided into three steps:
1.Breaking of intermolecular forces: This is the enthalpy change associated with breaking the intermolecular forces between solute molecules, such as van der Waals forces, and between solvent molecules. This enthalpy change is usually an exothermic process, meaning that energy is released when the molecules interact and form a solution. The magnitude of the enthalpy change in this step is dependent upon the strength of the intermolecular forces between the molecules.
2.Mixing of the two components: This is the enthalpy change associated with the mixing of the two components (solute and solvent). This enthalpy change is usually endothermic, meaning that energy is absorbed when the molecules mix together into a solution. The magnitude of the enthalpy change in this step is dependent upon the differences between the two components.
3.Solution formation: This is the enthalpy change associated with the formation of solute-solvent interactions. This may either be an exothermic or endothermic process, depending upon the types of interactions formed. The magnitude of the enthalpy change in this step is dependent upon the strength of the solute-solvent interactions.
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Which notation of a radioisotope is correctly paired with the notation of its emission particle?
1)³⁷Ca and ⁴₂He
2)²³⁵U and ⁰+₁e
3)¹⁶N and ¹₁P
4)³H and ⁰₋₁e
³⁷Ca and ⁴₂He is the notation of a radioisotope that is correctly paired with the notation of its emission particle.
Generally, radioisotope is defined as an unstable form of a chemical element that releases radiation as it breaks down and becomes more stable. Basically, radioisotopes may occur in nature or be made in a laboratory. Generally, in medicine, they are used in imaging tests and in treatment and it is also called radionuclide.
Generally, uranium is the best known example of a naturally-occurring radioisotope. All but 0.7 per cent of naturally-occurring uranium occurs as uranium-238 while the rest is the less stable, or more radioactive, uranium-235, which has three fewer neutrons in its nucleus.
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a scientist mixes 0.02 g of a strong base in 83 ml of water and obtains a ph of 12. he then realizes that he forgot to label the container and forgot what base he added. what is the most likely the identity of this base?a. KOHb. LiOHc. RbOHd. NaOH
Now, we must first calculate the value of pOH using the provided pH value in order to get the concentration of hydroxide ions. LiOH will be the base.
What is meant by pH?A way to gauge how basic or acidic a material or solution is. On a scale of 0 to 14, pH is measured. A pH of 7 indicates neutrality on this scale, which implies it is neither acidic nor basic. If the pH is less than or equal to 7, it is more acidic and basic, respectively. pH is a measurement even though it appears to belong on the periodic table of elements.Potential Hydrogen, or pH, is an acronym that indicates the amount of hydrogen present in liquids as well as the degree of hydrogen ion activity.The negative logarithm of the hydronium ion concentration in moles per liter is used to calculate the pH of a solution. The formula is as follows:
pH = -log [H₃O⁺]
We have the relation, pH + pOH = 14
Then pOH = 14 - pH = 14 - 12 = 2
[OH⁻] = -log [pOH]
= -log (2)
= 10⁻² M
= 0.01 M
The base's molar mass is:
[OH⁻] = Mass of the base × 1000 / Molar mass × volume
0.01 = 0.02 × 1000 / 0.01 × 83
= 24 mol / gm
LiOH thus has a molar mass of 24 mol/gm.
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sodium atomic number
The atomic number of sodium is 11.
Generally atomic number is defined as the number of a chemical element in the periodic system, whereas the elements are usually arranged in order of increasing number of protons present in the nucleus. Accordingly, the number of protons present in element, which is always equal to the number of electrons present in the neutral atom, is also known as the atomic number.
Sodium is the chemical element of the alkali metal group (Group 1 [Ia]) of the modern periodic table. Sodium is basically a very soft silvery-white metal which reacts when exposed to moisture. Sodium is the most common alkali metal and also it is the sixth most abundant element present on Earth, which comprises 2.8 percent of Earth's crust. The atomic number of sodium is 11.
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colligative properties depend only on solute concentration; the identity of the solute is not important.TrueFalse
True.
Yes , Colligative properties depends only on the solute concentration and not on the identity of solute.
Colligative properties are those properties of solutions that depend on the ratio of the number of solute particles to the number of solvent particles in a solution, and not on the nature of the chemical species present.
The definition of colligative properties itself says the above stated statement is true or false .
Colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.
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Samantha recorded observations on the similarities between the life cycle of an eagle and the life cycle of a moth that undergoes complete metamorphosis. Which observation is Samantha wrong about?
A moth and an eagle both start their life cycle as a fertilized egg.
A moth and an eagle both hatch from an egg outside of their mother.
A moth and an eagle both undergo complete metamorphosis with significant change during development.
A. I
B.I and II
II and III
III
Answer:
C. II and III
Explanation:
Observation I is correct, as both moths and eagles begin their life cycle as a fertilized egg. Observation III is also correct, as both undergo significant changes during development.
However, Observation II is incorrect. Eagles are born as live young, while moths hatch from their eggs as larvae and undergo complete metamorphosis before becoming an adult. Therefore, moths do not hatch from an egg outside of their mother, but rather hatch from an egg laid by their mother.
Classify Each Of The Following Substances And Descriptions As An Electrolyte Or A Nonelectrolyte.sodium chloride,Nacl,table sugar, sodium hidroxide,NaOH,
a saluble ionic compound,methanol,CH3OH,potassium iodide,Kl,
most molecular solutes, asubtance that form an aqueous solution that does not conduct electricity
Electrolytes: sodium chloride, potassium iodide, sodium hydroxide.
Nonelectrolytes: table sugar, methanol, and most molecular solutes.
Sodium chloride and potassium iodide are electrolytes because they are soluble ionic compounds that dissociate into ions in solution, allowing them to conduct electricity. Sodium hydroxide is also an electrolyte for the same reason.
Table sugar and methanol are nonelectrolytes because they do not dissociate into ions in solution, meaning they do not conduct electricity.
Overall, the classification of a substance as an electrolyte or nonelectrolyte depends on its ability to dissociate into ions in solution. Electrolytes dissociate into ions, allowing them to conduct electricity, while nonelectrolytes do not dissociate into ions and do not conduct electricity in solution.
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--The complete question is, Classify each of the following substances and descriptions as an electrolyte or a nonelectrolyte.
-most molecular solutes
-sodium chloride, NaCl
-potassium iodine, KI
-table sugar
-methanol, CH3OH
-sodium hydroxide, NaOH
-a substance that forms an aqueous solution that does not conduct electricity
-a soluble ionic compound--
Which of the following is NOT TRUE about simple distillation?
a. The greater the difference in the boiling points of the components, the better the separation.
b. The less volatile component boils first and travels along the condenser.
c. It can be applied to mixtures with components boiling below 150°C.
d. A sand bath can be used in place of a water bath to provide even heating of the flask.
Option - D:The statement that is NOT TRUE about simple distillation is d. A sand bath can be used in place of a water bath to provide even heating of the flask.
Simple distillation involves heating a mixture to evaporate the more volatile component, condensing the vapour, and collecting the purified liquid. As it can sustain a consistent temperature near to the mixture's boiling point, a water bath is frequently utilised to enable uniform heating of the flask. As a sand bath might have hot patches or temperature changes that can impact the separation's quality, it could not deliver as uniform heating. a technique for separating mixes in a boiling liquid combination based on variations in their volatilities. After applying heat to a sample combination, the components are instantly cooled by the action of cold water in a condenser. There are two steps in the distillation refining process.
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For the list of alcohols rank the alcohols in strength from weakest acid t0 strongest acid: Weakest Strongest FzCHOH FzCOH FCH,OH CH;OH
Answer:
CH3OH (methyl alcohol)
FCH2OH (fluoromethanol)
F2CHOH (difluoromethanol)
F3COH (trifluoromethanol)
Explanation:
In general, the strength of an acid increases with the stability of the conjugate base. The more stable the conjugate base, the stronger the acid. In this case, we can compare the stability of the conjugate bases of the alcohols. The more stable the conjugate base, the weaker the acid.
The conjugate base of an alcohol is an alkoxide ion (RO-), formed by removing a proton (H+) from the alcohol. The stability of the alkoxide ion depends on the strength of the carbon-oxygen bond. The stronger the carbon-oxygen bond, the more stable the alkoxide ion, and the weaker the acid.
Therefore, we can rank the alcohols in terms of acidity as follows (from weakest to strongest):
c. CH3OH (methyl alcohol)
a. FCH2OH (fluoromethanol)
b. F2CHOH (difluoromethanol)
d. F3COH (trifluoromethanol)
This is because as we go from CH3OH to FCH2OH to F2CHOH to F3COH, the electronegativity of the atom attached to the carbon atom increases, leading to a stronger carbon-oxygen bond, and therefore a more stable alkoxide ion and a weaker acid.
Which pair lists the element with the lower first ionization energy first?A. Magnesium, CalciumB. Helium, NeonC. Oxygen, FluorineD. Chlorine, Sulfur
Helium, Neon are the elements with the lower first ionization energy first. The correct option is B.
Thus, Helium has a lower initial ionization energy than neon in this combination. The energy needed to remove an atom's outermost electron and leave behind a positively charged ion is known as the first ionization energy.
In contrast to neon, which has an extra electron in its valence shell, helium has a full valence shell with two electrons, making it more stable and less prone to lose an electron.
Helium has a lower initial ionization energy than neon as a result.
Thus, Helium, Neon are the elements with the lower first ionization energy first. The correct option is B.
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Complete the following mechanisms by adding the correct mechanism arrows to the reagents in the drawing window. Be sure to answer all parts._______ -> + LiOCH3
The mechanism arrow indicates that a nucleophilic substitution reaction is occurring.
What is substitution reaction ?A substitution reaction is a chemical reaction in which one functional group in a molecule is replaced by another functional group. It is generally a type of organic reaction in which an atom or group of atoms is replaced by another atom or group of atoms. This reaction can occur between molecules or within a single molecule. Substitution reactions are important in organic chemistry, as they are responsible for many of the transformations that are carried out on carbon-containing molecules. The most common types of substitution reactions are nucleophilic substitution reactions, electrophilic substitution reactions, and radical substitution reactions.
The lithium alkoxide (LiOCH3) is acting as a nucleophile, attacking the carbon atom of the starting material, resulting in the formation of a new carbon-oxygen single bond.
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An instrument that is used in chemical experiments is:
A gun
A laser pointer
A vacuum chamber
Paper
what is active ingredient in tylenol?
Acetaminophen, usually referred to as paracetamol, is the substance that makes Tylenol active. It functions as a painkiller and fever reducer by preventing the body's generation of certain molecules that ingredient
A material that is included into the creation of a product or combination is known as an ingredient. An active component in a medicine is the chemical molecule that gives the drug its therapeutic effects. Excipients usually referred to as inactive substances, are added to medications for a number of reasons, including to aid in absorption, enhance flavour or texture, or lengthen shelf life. A drug's purity and quality of components determine its effectiveness and safety. In particular, if you have allergies or are taking other drugs that might interfere with the active or inactive substances, it is crucial to thoroughly read the label and go through any concerns with a healthcare professional.ingredient
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What is the charge of the common ion formed by each of these atoms? Either -2,-1,+1, or +2.
S, Br, I, Li, Sr, Mg, Na, Cs, Ba, F, and O
S: -2 (Sulfur) , Br: -1 (Bromine), I: -1 (Iodine) ,Li: +1 (Lithium) ,Sr: +2 (Strontium) ,Mg: +2 (Magnesium) ,Na: +1 (Sodium) ,Cs: +1 (Cesium), Ba: +2 (Barium) ,F: -1 (Fluorine) ,O: -2 (Oxygen)
What is Magnesium ?Magnesium is an essential mineral found in the human body. It plays an important role in the body, acting as a cofactor in over 300 enzyme systems that regulate diverse biochemical reactions in the body, including protein synthesis, muscle and nerve function, blood glucose levels, and blood pressure regulation. Magnesium is also involved in energy production and metabolism and is necessary for the proper functioning of muscles, nerves, and enzymes. It helps to keep bones strong, maintains normal heart rhythm, and helps to regulate blood sugar and blood pressure levels. Magnesium is found in many foods, including green leafy vegetables, nuts, seeds, and some types of seafood.
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what is 26 atomic number?
Answer: Fe (iron)
Explanation:
the whole number next to the symbols on the periodic table that ascend in order by 1 are the atomic numbers, just look for the symbol next to the number 26.
Which of the following actions would affect the secondary, but not primary, structure of a protein?A. Break the ionic bonds between amino acidsB. Change the sequence of amino acidsC. Break the hydrogen bonds between amino acidsD. Disrupt the interactions between two different polypeptide chains
Break the hydrogen bonds between the amino acids would affect the secondary, but not primary, structure of a protein. Option C is correct.
The secondary structure of a protein is determined by the regular repeating patterns of hydrogen bonds between the carbonyl group of one amino acid residue and the amine group of another amino acid residue.
Disrupting the hydrogen bonds between amino acids would affect the secondary structure of the protein, as it would cause the regular repeating patterns to be lost and potentially result in a loss of α-helices, β-sheets, or other regular structures.
However, breaking ionic bonds between amino acids, changing the sequence of amino acids, or disrupting interactions between different polypeptide chains would affect the primary or tertiary structure of the protein, respectively, and not the secondary structure.
Hence, C. Break the hydrogen bonds between amino acids is the correct option.
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what is periodic table atomic mass?
Generally, the atomic mass is defined as a weighted average of all of the isotopes present in that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.
Atomic number is defined as the number of protons present in the nucleus (which is the same as the number of electrons in the atom). Basically a one or two letter symbol that represents the element. These are internationally-used symbols and abbreviations for the common name or the Latin name of the element.
Generally, the atomic mass is the average number of protons and neutrons in atoms of a chemical elements, which allows for the natural abundances of the element's isotopes.
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In the following acid-base reaction, CH3NH3+ is the CH3NH2(g) + H2O(1) → CH3NH3(aq) + OH¯(aq)
Conjugate base
Conjugate acid
Acid
In the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
What is acid-base reaction?The exchange with one or maybe more hydrogen ions, H+, among species that could be neutral (molecules like water, H2O, or acetic acid, CH3CO2H), as well as electrically charged (ions like ammonium, NH4+, hydroxide, OH, or carbonate, CO32), is what is known as an acid-base reaction.
It also covers equivalent behavior of acidic ions and molecules (aluminum chloride, AlCl3, and the silver ion AG+) that do not give hydrogen ions. In the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
Therefore, in the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
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mass (g) to mass (g)
N2 + 3H2 > 2NH3
How many moles of hydrogen are needed to react with 2 grams of nitrogen?
Answer:
0.214 moles of hydrogen are needed to react with 2 grams of nitrogen.
A monatomic gas and a diatomic gas have equal numbers of moles and equal temperatures. Both are heated at constant pressure until their volume doubles. What is the ratio �
diatomic /
�
monatomic Q diatomic
/Q monatomic
?
The ideal monatomic molecule has three degrees of freedom, thus let N=the total number of molecules in each gas maintained at temperature T.
Hence, the monatomic gas's typical kinetic energy E₁=(3/2) Nkt
, then its heat capacity at constant volume,
[tex]e1=\frac{3}{2} nKt[/tex]
. [k= Boltzman constant]
Similarly, for the diatomic gas
Cv₂=5/2Nk
as 5 degrees of freedom are available to a diatomic molecule.
Now, each of the gases receives a certain quantity of energy E in the form of heat. If T₁ and T₂ are the corresponding temperature increases, then
E=Cv₁T₁=Cv₂T₂,
or,
T₁/T₂=Cv₂/Cv₁ = 5/3
So,
T1>T2
this monatomic gas will be more heated.
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The ratio of the final volumes is 1:1
The ratio of the final volume of the diatomic gas to that of the monatomic gas can be found using the ideal gas law, which relates pressure, volume, number of moles, and temperature:
PV = nRT
Where:
P = pressure
V = volume
n = number of moles
R = the gas constant
T = temperature
Since the gases are at the same temperature and have the same number of moles, their ratio of volumes will depend only on the ratio of their pressures.
Let's consider the monatomic gas first. Since the pressure is constant during heating, we can write:
P₁V₁ = nRT₁
After doubling the volume, the new volume is 2V₁, and we can write:
P₂(2V₁) = nRT₂
where P₂ is the new pressure and T₂ is the final temperature of the gas.
Dividing the second equation by the first equation, we get:
P₂(2V₁) / (P₁V₁) = nRT₂ / nRT₁
Canceling out n and rearranging the terms, we get:
P₂ / P₁ = (2V₁ / V₁) * (T₂ / T₁)
P₂ / P₁ = 2(T₂ / T₁)
Similarly, for the diatomic gas, we have:
P₃V₃ = nRT₁
P₄(2V₃) = nRT₂
Dividing the second equation by the first equation, we get:
P₄ / P₃ = (2V₃ / V₃) * (T₂ / T₁)
P₄ / P₃ = 2(T₂ / T₁)
Since both gases have the same number of moles and are heated at constant pressure, their initial pressures are the same (P₁ = P₃). Therefore, the ratio of the final pressures is:
P₂ / P₄ = (P₂ / P₁) * (P₃ / P₄) = 1 * (P₃ / P₄) = P₃ / P₄
Substituting the expressions we found for P₂ / P₁ and P₄ / P₃, we get:
P₃ / P₄ = (2(T₂ / T₁)) / (2(T₂ / T₁)) = 1
Therefore, the ratio of the final volumes of the diatomic gas to the monatomic gas is:
(2V₃) / (2V₁) = V₃ / V₁ = P₃ / P₁ = 1
So the ratio of the final volumes is 1:1. This means that both gases will occupy the same volume after being heated at constant pressure until their volume doubles, as long as they have the same number of moles and the same initial temperature.
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When 19.04 grams of methane (CH4) are burned (see equation below), how many moles of oxygen gas (O₂) will be used? Please round your answer to two digits after the decimal point and don't forget units and substance!
CH4 + 2 O2 --> CO2 + 2 H₂O
Answer:
The number of moles of oxygen gas used when 19.04 grams of methane is burned is 2.38 mol O2.
Explanation:
To answer this question, we need to use the balanced chemical equation provided and the given mass of methane to determine the number of moles of oxygen gas used.
First, we need to calculate the number of moles of methane present in 19.04 grams of CH4:
Number of moles of CH4 = mass of CH4 / molar mass of CH4
= 19.04 g / 16.04 g/mol
= 1.19 mol
Next, we can use the stoichiometric coefficients from the balanced equation to determine the number of moles of oxygen gas required to react with the 1.19 mol of CH4:
1 mol CH4 + 2 mol O2 → 1 mol CO2 + 2 mol H2O
From this, we can see that 1 mole of CH4 reacts with 2 moles of O2. Therefore, we can calculate the number of moles of O2 required as follows:
Number of moles of O2 = 1.19 mol CH4 x (2 mol O2 / 1 mol CH4) = 2.38 mol O2
Therefore, 19.04 grams of methane will react with 2.38 moles of oxygen gas.
Note: It's important to specify the substance and units in the answer, as requested.
A calcium supplement contains 570 mg of calcium per tablet. Write the equality for this statement. Express your answer using correct number of significant figures.
1 tablet = mg of calcium
A calcium supplement contains 570 mg of the calcium per tablet. The equality for this statement is 610 mg of the calcium = 1 tablet .
The Amount of the calcium present in the calcium supplement is 610 mg per tablet . The Equality statement are obtained is expressed as follows: 610mg of the calcium = 1 tablet
Our body needs calcium to be build and to maintain the strong bones. Our heart, muscles and the nerves also need the calcium to function it properly. When our body calcium intake is insufficient, and our body will remove the calcium from the bones, and making them weak and the brittle.
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The pyramid of memphis, in tennessee, stands 107 yards tall and has a square base whose side is 197 yards long. Explained
Rounding to the nearest cubic yard, the volume of the Pyramid of Memphis is approximately 1,376,886 cubic yards.
To find the volume of the Pyramid of Memphis, we need to use the formula:
Volume = (1/3) x Base Area x Height
where Base Area is the area of the square base, and Height is the height of the pyramid.
The area of the square base is:
Base Area = [tex](Side Length)^2[/tex]
= [tex](197 yards)^2[/tex]
= 38,809 square yards
The height of the pyramid is given as 107 yards.
Therefore, the volume of the pyramid is:
Volume = (1/3) x Base Area x Height
= (1/3) x 38,809 x 107
≈ 1,376,886 cubic yards
To find the volume of a three-dimensional object, you need to determine how much space it occupies. The formula for the volume of a three-dimensional object depends on the shape of the object.
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Note- The correct question would be as below
The Pyramid of Memphis, in Tennessee, stands 107 yards tall and has a square base whose side is 197 yards long. What is the volume of the Pyramid of Memphis, to the nearest cubic yard?
what name is given to the following reaction? disaccharide water → monosaccharide monosaccharide
The given reaction is hydrolysis.
Basically when we talk about hydrolysis, it is a chemical reaction where a larger molecule is broke down into smaller molecules or individual components using water.
Water is [tex]H_{2} O[/tex] and this can split into both H+ and OH- . This water can donates a hydrogen ion H+ to one part of the molecule and a hydroxyl group OH- to another part. Due to this, there happens a cleavage or separation in larger molecules.
In the given reaction molecule of water is used to break a disaccharide into two separate monosaccharides. Disaccharide is a molecule which constituted by two monosaccharides.
Same way above mentioned, the water molecule donates a hydrogen ion H+ to one of the monosaccharides and a hydroxyl group OH- to the other.
As a result the separation happens into two monosaccharides. Term "hydrolysis" literally means "breaking apart with water."
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some cars can use butane (c4h10) as feul 2c4h10+13o2->8co+10h2o
how many grams of h2o are produced 5.38 grams of o2
Answer:
Podemos utilizar la estequiometría de la reacción química para calcular la cantidad de agua (H2O) producida a partir de 5.38 gramos de oxígeno (O2).
La reacción química balanceada es:
2 C4H10 + 13 O2 → 8 CO + 10 H2O
La proporción molar entre O2 y H2O es 13:10. Primero, necesitamos determinar cuántos moles de O2 tenemos:
n(O2) = m(O2) / M(O2) = 5.38 g / 32 g/mol = 0.1681 mol
Según la estequiometría de la reacción, cada mol de O2 produce 10 moles de H2O. Ente
n(H2O) = 10 x n(O2) = 10 x 0,1681 mol = 1,681 mol
Finalmente, podemos calcular la masa de H2O producida:
m(H2O) = n(H2O) x M(H2O) = 1.681 mol x 18 g/mol = 30.258 g
Por lo tanto, se producen 30.258 gramos de H2O a partir de 5.38 gramos de O2.
Explanation:
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A typical high-pressure tire on a bicycle might have a volume of 365 mL and a pressure of 7.80 atm at 25 °C. Suppose the rider filled the tire with helium to minimize weight. What is the mass of the helium in the tire?
The mass of helium in the tire is 0.0452 g. To calculate the mass of helium in the tire, we need to use the ideal gas law, which relates the pressure, volume, and temperature of a gas to its number of moles and therefore its mass: PV = nRT
To calculate the mass of helium in the tire, we need to use the ideal gas law, which relates the pressure, volume, and temperature of a gas to its number of moles and therefore its mass:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the universal gas constant, and T is the temperature.
We know the pressure, volume, and temperature of the helium in the tire, so we can solve for the number of moles of helium:
n = PV/RT
where R = 0.08206 L atm/K mol is the universal gas constant.
Substituting the values given:
n = (7.80 atm) x (0.365 L) / [(0.08206 L atm/K mol) x (25°C + 273.15)]
n = 0.0113 mol
Finally, we can calculate the mass of the helium using the molar mass of helium, which is 4.003 g/mol:
mass = n x molar mass
mass = 0.0113 mol x 4.003 g/mol
mass = 0.0452 g
Therefore, the mass of helium in the tire is 0.0452 g.
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can you go from an aldehyde to a carboxylic acid
Producing Carboxylic Acids from Primary Alcohols or Aldehydes via Oxidation.The potassium dichromate(VI) solution undergoes a reaction and changes colour from orange to green.
An organic substance with a carboxyl functional group is known as a carboxylic acid. They are extensively distributed in nature and are also produced artificially by people. When carboxylic acids deprotonate, a carboxylate anion with the general formula R-COO- is produced. This anion can be used to create a number of beneficial salts, including soaps. Because it is made up of two functional groups—a carboxyl group and a hydroxyl group attached to a carbonyl group—the carboxyl functional group that distinguishes carboxylic acids is uncommon. It is frequently written as -CO2H or -COOH in condensed form. An organic acid that has a carboxyl group (C(=O)OH) connected to an R-group is referred to as a carboxylic acid in organic chemistry. A carboxylic acid's usual formula is RCOOH or RCO.
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The following reaction is an elementary process with ΔE equal to −109 kJ/mol.
CH3(g) + Cl2(g) → CH3Cl(g) + Cl(g)
The activation energy is 4 kJ/mol. What is the activation energy of the reverse reaction?
113 KJ/mol is the activation energy of the reverse reaction.
In physics and chemistry, activation energy seems to be the bare minimum of energy required for compounds to undergo a chemical reaction. A reaction's activation energy (Ea) is expressed in joules each for a mole (J/mol), joules per mole (kJ/mol), or kilocalories each for a mole (kcal/mol).
The magnitude of the potential barrier (also known as the energy barrier) separates minima of both the rate-dependent corresponding to the initial and ultimate thermodynamic states can be thought of as activation energy.
For a chemical change to progress at a reasonable rate, the system temperature should be high enough that there is a significant quantity of molecules with transcriptional energy at or greater than the activation energy. The phrase "activation energy" was coined.
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The longest-range form of radiation, which has high energy and can range several hundred feet or more is:
A. beta particles
B. alpha particles
C. X-rays
D. neutron radiation
The longest - range form of radiation, which has high energy and can range several hundred feet or more is the correct option is D. neutron radiation.
The neutron radiation is the form of the ionizing radiation that is presents as the free neutrons. It is the phenomena that are the nuclear fission or the nuclear fusion which will causing the release of the free neutrons, which then will react with the nuclei of other atoms to form the new nuclides and which, in the turn, will trigger the further neutron radiation.
Thus, the neutron radiation is the longest range form of radiation, which has high energy .
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