Arrange the fertilizers in decreasing order of mass percentage of nitrogen. Highest percent nitrogen (NH4), H2, PO4, (NH4)2,SO4 (NH4)2 HPO4 NH4 NO3, KNO3, NH, Lowest percent nitrogen

Answer:

Electrons orbit the nucleus in an atom.

Answer:

D carbon dioxide

Explanation:

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Graphs helpful for displaying data because they do not use numerical information. Therefore, the correct option is option A.

A graph is a structure that resembles a set of items in discrete mathematics, more especially in graph theory, in which certain pairs of the objects being conceptually "connected."

The items are represented by mathematical abstractions known as vertices, and each pair of connected vertices is known as an edge (also called link or line). Graphs helpful for displaying data because they do not use numerical information.

Therefore, the correct option is option A.

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Acetic acid will corrode metals since it is acidic, forming acetate salts in the process. For instance, acetic acid and magnesium (Mg) will combine to generate magnesium acetate

What is the role of magnesium in the body?

Magnesium is required by the body to keep its muscles, especially the heart, healthy. According to research, magnesium is crucial for heart health. A 2018 research found that a person's risk of cardiovascular issues can rise if they have a magnesium shortage. This is partially brought on by its cellular functions.

What are supplements for magnesium?

A mineral called magnesium that is necessary for the body's regular bone structure. Although most people acquire their magnesium through food, if levels are extremely low, magnesium supplements may be necessary.

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The molar mass formula is as follows :

The molar mass = mass / moles  = g/mol

The Molar mass of the  substance is the mass in the grams of the one mole of the compound.  The one mole of the any substance is 6.022 × 10²³ molecules. The standard unit for the molar mass is g/mol. The the SI unit is kg /mol. The formula to calculate the molar mass is as follows :'

The molar mass = mass / moles  = g/mol

The mass of the one atom of the carbon  -12 the atomic mass of the carbon-12 is exactly equals to the 12 atomic mass units. The mass of the one mole of the  carbon - 12 atoms is exactly equals to the 12 grams. the   molar mass is exactly equals to the 12 grams per mole.

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With an atomic number of 92, uranium is a metallic chemical element in the periodic chart that is silvery-white.

Chemical element uranium has the atomic number 92 and the letter U. It is an actinide metal in the periodic table's silvery-gray family. There are 92 protons and 92 electrons in a particle of uranium, of which 6 are valence electrons. All uranium isotopes are unstable, making uranium only weakly radioactive. The half-lives of uranium's naturally occurring isotopes vary from 159,200 years to 4.5 billion years. Uranium-238, which has 146 protons and makes up more than 99% of the uranium on Earth, and uranium-235 are the two most prevalent isotopes in natural uranium (which has 143 neutrons). The element with the greatest atomic weight among those found in the early universe is uranium. Its density is slightly lower than that of gold or tungsten and is roughly 70% greater than that of lead. It is extracted for industrial purposes from uranium-bearing minerals like uraninite, where it is found naturally in small amounts of a few parts per million in soil, rock, and water.

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Answer:

The function of this molecule within the cell is to store energy.

A molecule consisting of a chain of glucose monomers is typically a complex carbohydrate like starch or glycogen. These molecules primarily function as a source and storage of energy within cells. They are metabolized into glucose units to produce ATP, the cell's main energy source.

A molecule made up of a chain of glucose monomers linked together is typically a complex carbohydrate, also known as a polysaccharide. One example of such a molecule is starch, which is used by plants for energy storage. In animal cells, a similar molecule is glycogen. These molecules function as a source of energy and as a store of energy within the cell. During metabolism, these complex carbohydrates are broken down into their constituent glucose units, which are then used to produce ATP, the main energy currency of the cell.

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The one that is accompanied by the lactic acid formation is the Anaerobic glycolysis.

The Lactic acid will be mainly produced in the muscle cells and the red blood cells. It will forms when the body will breaks down the carbohydrates in to the use for the energy when the oxygen levels are low.

The Anaerobic glycolysis can be define as the energy production in the cells that cannot be produce the adequate energy through the oxidative phosphorylation. In the poorly oxygenated tissue, the glycolysis produces the 2 ATP by shunting the pyruvate away from the mitochondria and via the lactate dehydrogenase reaction.

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Dispersion and dipole-dipole intermolecular forces are present between the two molecules of CH₃CH₂SH. Option D is correct.

Two molecules of CH₃CH₂SH can interact with each other through dipole-dipole interactions because of the polar C-S bond and polar C-H bonds in the molecule. In addition, the molecule can have temporary induced dipoles due to the movement of electrons, leading to London dispersion forces.

Therefore, the main intermolecular forces present between two molecules of CH₃CH₂SH are dipole-dipole interactions and London dispersion forces. Hydrogen bonding is not present between two  CH₃CH₂SH molecules because there is no hydrogen atom bonded to a highly electronegative atom such as O, N, or F.

Hence, D. dispersion and dipole-dipole is the correct option.

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--The given question is incomplete, the complete question is

"What intermolecular forces are present between two molecules of CH₃CH₂SH? A.)dispersion only B.)dipole-dipole only C.)hydrogen bonding only D.)dispersion and dipole-dipole E.)dispersion and hydrogen bonding"--

When we add zinc carbonate to nitric acid until the zinc carbonate is in excess, the following reaction takes place :

ZnCO3 + 2HNO3 -> H2O + CO2 + Zn(NO3)2

A chemical reaction is a process in which substances (reactants) are converted into one or more different substances (products).

The following two observations will be made:

1. CO2 gas would bubble through the solution.

There is an evolution of Carbon dioxide that would be seen in the form of bubbles.

2. White solid would be found at the bottom.

Precipitation takes place, leading to the deposit of a white solid at the bottom of the solution.

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3% mass by volume solution contain 3 g of the solute per 1 L of the solution. 3 g of hydrogen peroxide contains 0.088 number moles. Then molarity of the solution is 0.088 M.

Molarity of a solution is a common term used to express the concentration of a solution. It is the ratio of number of moles of solute to the volume of the solution in liters.

Mass by volume percent is another term for concentration indicating how many grams of the salt is present in one liter of the solution.

Given mass/ volume of hydrogen peroxide = 3%

that is 3 g in 1 L

molar mass of H₂O₂ = 34g/mol

then no.of moles in 3 g = 3 g /34 g/mol = 0.088 moles.

Then molarity of 0.088 moles in 1 L solution is 0.088 M.

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The size of an element's atoms is referred to as its atomic size. The distance between the nucleus and the electrons' outermost shell is used to measure it. Moving down a group tends to increase atomic size while moving across a period tends to decrease it.

Because each succeeding element has an extra electron shell, the atomic size of elements tends to rise down a group. The electrons are subsequently further from the nucleus, which causes an increase in atom size. The amount of protons in the nucleus rises over time, attracting the electrons more strongly and shrinking the atom, which causes it to shrink from left to right over time. Due to things like electron-electron attraction and the shielding effect of inner electrons, there are some outliers to this pattern. For instance, partially full d orbitals may cause the atomic scale of transition metals to be lower than anticipated.

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Pre-wetting the filter paper is an important step in the filtration process that can help to ensure accurate and reliable results.

It is important to pre-wet the filter paper before filtering your sample. Pre-wetting the filter paper helps to ensure that the sample is filtered effectively, and prevents the filter paper from absorbing some of the sample.

If the filter paper is not pre-wetted, it can absorb some of the sample, leading to loss of the sample and inaccurate results. Additionally, pre-wetting the filter paper helps to remove any impurities or contaminants that may be present on the filter paper, which could interfere with the sample filtration.

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The mass of a helium in the tire, as approximated by an ideal gas, is 0.465 grams. Helium is a fictitious gas made up of the following types of molecules: Molecular interactions in ideal gases are neutral.

Many gases, including nitrogen, oxygen, gas, noble gases, certain heavier gases, like carbon dioxide, and mixtures, like air, can be considered as ideal gases when they are maintained within acceptable

Given the question below, we may infer that

V = 280 m L=0.365 L and P=7.8 atm

T = 25⁰ C = 298 K

Mr = 4

We obtain the mass by applying the ideal gas equation.

P V = n R T 7.8. 0.365 = gr / Mr. 0.0821. 298

7.8. 0.365 gm / 4. 0.0821 gm / 298 gm = 0.465 gm

A perfect gas is one that complies with the ideal gas law and has a heat capacity that is unaffected by temperature, according to physicists. Engineers refer to a gas as being ideal if it complies with the ideal gas rule and exhibits a temperature-dependent heat capacity.

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The change in free energy of a chemical reaction represents the amount of energy that is available to do useful work. It is a thermodynamic quantity that indicates the direction and extent of a chemical reaction.

If the free energy change (ΔG) is negative, the reaction is exergonic, meaning that energy is released and the reaction is spontaneous. This indicates that the products are more stable than the reactants, and the reaction will proceed in the forward direction. Conversely, if the free energy change (ΔG) is positive, the reaction is endergonic, meaning that energy is required for the reaction to occur and it is non-spontaneous. This indicates that the reactants are more stable than the products, and the reaction will proceed in the reverse direction. If the free energy change (ΔG) is zero, the reaction is at equilibrium, meaning that the forward and reverse reactions are occurring at equal rates and the concentrations of reactants and products do not change over time.

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Answer:

True

Explanation:

If we know the resistance and the voltage, then we can find the current using the ohm's law, according to which Voltage = Current×Resistance

so from this equation

Current = Voltage/ Resistance

Therefore the statement is true

The mass of sucrose that is hydrolyzed when 2.60 l of a 0.160 m sucrose solution is allowed to react for 200 minutes is 106 g.

The following information in the complete question;

Rate constant (k) = 1.8 x 10^-4 s^-2

Initial concentration (Ao) = 0.130 M

Time is taken =  190 minutes or 11400 seconds

Final concentration (A) =?

Given that;

lnA = lnAo - kt

A = e^ lnAo - kt

A = e^[(ln0.130) - ( 1.8 x 10^-4  x  11400)

A = 0.017 M

Now;

n = CV

n = Number of moles

C = Molar concentration

V = volume

After hydrolysing the number of moles = 0.017 M ×  2.75 L

= 0.047 moles

Before hydrolysing number of moles =0.130 M  ×  2.75 L = 0.358 moles

Hydrolysed number of moles include=  0.358 moles - 0.047 moles = 0.311 moles

Mass = Number of moles × molar mass

Molar mass of sucrose = 342 g/mol

Mass =   0.311 moles × 342 g/mol

Mass = 106 g

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Answer: is in equilibrium with

hope this helped

False. From the Stone Age, when stones were employed for hammering and cutting, humans have utilized hand tools. Casting copper and tin alloys allowed for the production of implements throughout the Bronze Period.

Tools made of bronze were more durable and sharp than those made of stone. In the Iron Age, iron took the place of bronze, and tools grew stronger and more resilient. During this time, the Romans created tools that are still being made today.

With the industrial revolution, factory production replaced handcrafting as the primary method of producing tools. Any tool used by craftspeople for manual work is referred to as a hand tool.

Simple tools that you use with your hands and are typically not powered are called hand tools. Any tool that is used manually rather than by a motor is referred to as a hand Examples include drills, vises, clamps, snips, saws, cutters, and files. Hammered or struck instruments also include screwdrivers.

Hand tools come in many varieties and can be used for any task. Certain tools are especially employed for a job, while others are not. Daily tasks need the use of hand tools. Throughout the beginning of time, people have utilized them to carry out a variety of beneficial tasks. It is crucial to understand how Hand tools are made and how to use them properly if you want the finest outcomes for your work. Injuries and errors could result from ignorance.

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hand tools are powered instruments, which can be very hazardous when improperly used due to their power source. True/false.

To determine half-life The substance's decay constant can be found. Divide the substance's decay constant by the natural logarithm of 2, also known as ln(2). we can use the knowledge that the half-life of 14C is 5700 years to determine the constant, k.

C has a 5,730-year half-life. In other words, a sample of organic material contains just 50% of the original amount of 14C after 5,730 years. Only 25% of the 14C is left after an additional 5,730 years, for a total age of 11,460 years. The half-life is the length of time it takes for an isotope to decay from a given amount by half. For instance, carbon-14 has a 5,730-year half-life. Assume you begin with 100 grammes of carbon-14. Half of it decays in 5,730 years. Half-life is the length of time it takes for a radioactive element to decay to half of its initial value. Moreover, this indicates that one half life is the duration of the activity.

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Pure liquids and solids are not included in the equilibrium constant expression because their concentrations do not change significantly during the reaction and they do not affect the reaction quotient.

Pure liquids and solids are often ignored when writing the equilibrium constant expression because their concentrations remain constant and do not affect the equilibrium position. This is due to their very low vapor pressures compared to the gaseous reactants and products.

For example, in the reaction A(s) + B(g) ⇌ C(g) + D(l), the concentration of the liquid D remains constant and does not change the equilibrium position. Therefore, it is not included in the equilibrium constant expression.

In reactions involving aqueous solutions, the concentration of water is included because it can vary significantly and affect the equilibrium position.

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The order of decreasing boiling point is: Nonadecane > Paraffin > Pentane > 2,2-dimethylpropane > Propane.

The boiling point of hydrocarbons depends on their molecular size and shape, as well as intermolecular forces, such as Van der Waals forces. Larger molecules and molecules with more branching tend to have weaker intermolecular forces, resulting in lower boiling points.

So, the order of decreasing boiling point of the given hydrocarbons is:

Nonadecane: This is the largest molecule among the given hydrocarbons, and it has the strongest intermolecular forces due to its size. It has the highest boiling point among the given options.

Paraffin: Paraffin is a general term for straight-chain alkanes, such as methane, ethane, propane, and butane. Among these, propane has the lowest molecular weight and boiling point, while butane has a higher boiling point due to its larger size. However, the exact boiling point of paraffin depends on the specific molecule, so we cannot say for sure where it falls in this list.

Pentane: Pentane is a branched-chain alkane, which means it has weaker intermolecular forces than a straight-chain alkane of the same size. However, it still has a higher boiling point than propane due to its larger size.

2,2-dimethylpropane: This molecule is highly branched, which means it has very weak intermolecular forces. It has the lowest boiling point among the given options.

So, the order of decreasing boiling point is: Nonadecane > Paraffin > Pentane > 2,2-dimethylpropane > Propane.

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You can calculate electronegativity by comparing the electronegativity of the three elements.

To calculate the electronegativity of an element, you can use the Pauling scale. The Pauling scale assigns electronegativity values to elements based on their ability to attract electrons in a chemical bond.

In this sense, it is possible to calculate the electronegativity, for example, of three elements using a comparison. The higher the difference in electronegativity between the elements, the greater the polarity of the bond between them.

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The equilibrium constant kc equals 0.0085 for the following response at 89°C.  [tex]CH_{3} OH(g)[/tex] ⇄  [tex]CO(g) +2H_{2} (g)[/tex]  the value of the equilibrium constant (Kp) at 89°C is 0.016 [tex]atm^2[/tex].

To find the relationship between the equilibrium constant Kc and the equilibrium constant Kp for a response,

we need to use the following equation:

Kp = [tex]Kc(RT)^{\delta\:n}[/tex]

where R is the gas constant,

T is the temperature in Kelvin, and

[tex]\delta\:n[/tex] shows the difference in the number of moles of gas between the products and the reactants.

For the given reaction, the balanced equation is as shown below:

[tex]CH_{3} OH(g)[/tex] ⇄  [tex]CO(g) +2H_{2} (g)[/tex]

The difference in the number of moles of gas  is calculated as:

[tex]\delta\:n[/tex] = (1 + 2) - 1

[tex]\delta\:n[/tex] = 2

where we count the coefficients of the gaseous products and deduct the coefficient of the gaseous reactant.

By placing the given values into the equation:

Kp = [tex]Kc(RT)^{\delta\:n}[/tex]

Kp = [tex](0.0085) (0.0821\: L\:atm/mol\:K)^2 (362.15 K)[/tex]

Kp = 0.016 [tex]atm^2[/tex]

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Answer:

Rollers pully

Explanation:

Combine the stoichiometry by a element's subscript to find number of atom.  In 2AI[tex]_2[/tex](CO[tex]_3[/tex])[tex]_3[/tex], 4 aluminium atom, 3 carbon atom and 9 oxygen atom are there.

Aluminium carbonate is an aluminum carbonate. It is not well defined; according to one reference, simple carbonates of aluminum are unknown.

Yet, similar compounds such as the basic sodium aluminum carbonate solid dawsonite and the hydrated basic aluminum carbonate minerals scarbroite as well as hydroscarbroite are known. To find the number of atoms in an element, combine the stoichiometry by a element's subscript. In  2AI[tex]_2[/tex](CO[tex]_3[/tex])[tex]_3[/tex], 4 aluminium atom, 3 carbon atom and 9 oxygen atom are there.

Therefore, in  2AI[tex]_2[/tex](CO[tex]_3[/tex])[tex]_3[/tex], 4 aluminium atom, 3 carbon atom and 9 oxygen atom are there.

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the most correct way to express density is: g/cm³

correct option: b

The substance's mass per unit of volume is known as its density (volumetric mass density or specific mass). Density is most frequently represented by the symbol "ρ", however Latin letter D may also be used. Mass divided by volume, or ρ = m/V, is the formula for density in mathematics, where ρ stands for density, m for mass, and V for volume. Density is sometimes loosely described as weight per unit volume, although this definition is incorrect technically; the term "specific weight" is more appropriate.

Correct option: b

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The compound pairs are the constitutional isomers are :

C. CH₃COCH₂CH₃ and CH₃CH₂COCH₃

D. CH₃CH₂CH₂CHO and CH₃COCH₂CH₃

G. CH₃COCH₂CH₃ and CH₃CH₂COCH₃

H. CH₃CH₂CH₂CHO and CH₃COCH₂CH₃

When the compounds have same molecular formula represents by the different compounds which are differ from the one another by the means of their structures are called the constitutional isomers.

The Constitutional isomers are those which have the same molecular formulas, but they will have the different connectivity.

C. CH₃COCH₂CH₃ and CH₃CH₂COCH₃ , the number of the carbon , oxygen and hydrogen atoms are same but the structure are different.

D. CH₃CH₂CH₂CHO and CH₃COCH₂CH₃, the number of the carbon , oxygen and hydrogen atoms are same but the structure are different.

G. CH₃COCH₂CH₃ and CH₃CH₂COCH₃, the number of the carbon , oxygen and hydrogen atoms are same but the structure are different.

H. CH₃CH₂CH₂CHO and CH₃COCH₂CH₃, the number of the carbon , oxygen and hydrogen atoms are same but the structure are different.

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Nitrogen has an atomic mass of approximately 14.0067 atomic mass units (u) and a molar mass of approximately 14.0067 grams per mole (g/mol).

Nitrogen is a chemical element with the symbol N and atomic number 7. It is a colorless, odorless, and tasteless gas that makes up about 78% of the Earth's atmosphere. The mass of nitrogen depends on the quantity of nitrogen being measured. The atomic mass of nitrogen is approximately 14.0067 atomic mass units (u), which is the average mass of one nitrogen atom. The molar mass of nitrogen, which is the mass of one mole of nitrogen atoms, is approximately 14.0067 grams per mole (g/mol). One mole of nitrogen contains

Avogadro's number of nitrogen atoms, which is approximately 6.022 x 10^23. If you have a specific quantity of nitrogen, you can calculate its mass by multiplying the quantity by the molar mass of nitrogen. For example, if you have 2 moles of nitrogen, the mass of nitrogen would be 2 x 14.0067 g/mol, which is approximately 28.0134 grams. Understanding the mass of nitrogen is important in various scientific fields, including chemistry, physics, and biology, as well as in industrial applications such as fertilizer production and food packaging.

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The family would have to compare the premiums and out-of-pocket costs of both plans to determine which one is the most cost-effective for their specific medical needs.

To determine which plan would save the family more money, we need to compare the total cost of each plan over a year. Let's assume that the total medical expenses for the family in a year are $15,000.

With the PPO that has a $5,000 deductible, the family would have to pay the first $5,000 of medical expenses out of pocket. After that, the insurance plan would cover the remaining $10,000 of expenses. The family's out-of-pocket cost for the year would be $5,000 (deductible) plus the cost of the insurance premiums. If the insurance premiums are less than the amount they would have paid with the 20% plan, then the PPO with a $5,000 deductible would be more cost-effective.

With the plan that requires the insured person to pay 20% of the cost, the family would have to pay 20% of the total medical expenses, which would be $3,000 (20% of $15,000). In addition, they would also have to pay the cost of the insurance premiums. If the insurance premiums are greater than the amount they would have paid with the PPO, then the plan that requires them to pay 20% of the cost would be more expensive.

Therefore, we need to compare the cost of the insurance premiums for each plan to determine which one would save the family more money. If the premiums for the PPO plan are less than the additional $2,000 cost of the 20% plan ($5,000 - $3,000), then the PPO with a $5,000 deductible would be more cost-effective. If the premiums for the 20% plan are less than the additional $2,000 cost of the PPO plan, then the 20% plan would be more cost-effective.

In general, it is difficult to determine which plan is more cost-effective without knowing the specific insurance premiums for each plan. The family should compare the premiums and out-of-pocket costs of both plans to determine which one is the most cost-effective for their specific medical needs.

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