Polar molecules are hydrophilic and dissolve in water, while hydrophobic molecules are non-polar and repel water.
Polar particles are hydrophilic, meaning they have serious areas of strength for a for water and will generally break up in it. This is on the grounds that polar particles have a net dipole second, where the circulation of electric charge is unevenly disseminated, bringing about incomplete positive and negative charges. At the point when put in water, the polar particles fall in line with the polar water atoms, shaping hydrogen bonds and dissolving. Interestingly, hydrophobic particles are non-polar and don't have areas of strength for a for water. This is on the grounds that they miss the mark on net dipole second and don't frame hydrogen bonds with water. All things considered, hydrophobic atoms will generally total and repulse water, which is the reason they are frequently called "water-dreading" or "water-repulsing."
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arrange the following atoms and ions in order of increasing atomic size?: a)Rbb)Agc)O−2d)Ale)Of)Csg)Al+3h)Si
The increasing order of given atoms and ions according to periodic table is :
[tex]O < AL^{3+} < Si < Al < O^{2-} < Ag < Rb < Cs[/tex]
On the periodic chart, atomic size decreases from left to right because, as we move from left to right, the attractive force of the protons on the same number of electron ring increases for each element. As a result, the electrons are drawn towards the center.
Moving from top to bottom results in period table, a rise in atomic size is observed because each element gains a new ring of electrons. The nucleus can be further removed from by outer electrons.
The oxygen ion([tex]O{2-}[/tex]) is bigger than oxygen in its elementary state because it has two more electrons and attracts 10 electrons in addition to its 8 protons. The aluminium ion[tex]Al^{3+}[/tex] is significantly smaller than the basic aluminium. In this instance, ten electrons are being drawn in by 13 protons. The 3 [tex]Al^{3+}[/tex] ion will therefore be smaller than the Si element, which has 14 protons pulling 14 electrons, as a consequence.
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The study of the relationship between heat and work within chemical reactions or physical changes of state is called chemical ________________.
a. reactions
b. chemistry
c. thermodynamics
d. changes
The study of the relationship between heat and work in a chemical reaction or change of physical state is called chemical thermodynamics. So, option C is correct.
The study of how heat and work interact with chemical reactions or physical state changes within the parameters of the laws of thermodynamics is called chemical thermodynamics.
Thermochemistry is the class of chemical reactions that result from the absorption and release of heat, while thermodynamics describes the rate at which heat flows.
The laws of thermodynamics explain how energy develops in a system and whether a system can use its surroundings to produce productive work. Hence, option C is correct.
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Wool does not hold electrons as tightly as rubber, so when a wool sweater and a rubber balloon are rubbed together, electrons transfer from the (sweater/balloon) to the (sweater/balloon).
When a wool sweater and a rubber balloon are rubbed together, their surfaces come into contact and the friction causes electrons to be transferred from one surface to the other.
Wool does not hold onto electrons as tightly as rubber, so electrons transfer from the sweater to the balloon. This results in the sweater becoming positively charged and the balloon becoming negatively charged. This transfer of electrons is known as static electricity, which can create a spark or shock when discharged. The strength of the static electricity generated depends on the materials involved, their surface area, and the amount of friction applied.
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why do you think the production of wool in decreasing in india
Outdated and inadequate pre- and post-loom processing facilities. Ineffective role of state wool marketing organizations. Lack of a Minimum Support Price (MSP) system. No educational institute for wool technology.
What is an organization?
Sociology can be summed up as the study of modernity's institutions; certain institutions have a purpose, much like the individual organs in a well-functioning body. An "organisation" may be more broadly defined in the social and political sciences as the planned, coordinated, and intentional behaviour of people acting together to accomplish a common objective or create a physical object. Often, official membership and form frame this action (institutional rules). Organizations can be classified in sociology as planned formal organisations or unplanned informal (i.e., impromptu) groups. Sociology examines organisations first and foremost from an institutional angle. In this regard, the organisation is a stable combination of components. Rules govern these components' behaviour, ensuring that.To know more about organization, click the link given below:
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how many different kinds of h signals would be observed in the h-nmr in 2-methylcyclohexanol?
The H-NMR spectrum of 2-methylcyclohexanol would typically show at least three different H signals, corresponding to the OH proton, the methyl group, and the ring protons.
What is nuclear magnetic resonance (H-NMR) spectrum?The nuclear magnetic resonance (NMR) spectrum is a spectroscopic technique used to determine the molecular structure of a compound by analyzing the magnetic properties of its atomic nuclei.
In proton nuclear magnetic resonance (H-NMR) spectroscopy, the magnetic properties of the hydrogen nuclei (protons) in a molecule are measured. The technique is based on the principle that when a molecule is placed in a strong magnetic field, the protons align themselves either with or against the magnetic field, resulting in two possible spin states.
In the proton nuclear magnetic resonance (H-NMR) spectrum of 2-methylcyclohexanol, the number of different H signals (peaks) observed depends on the different types of proton environments present in the molecule.
2-methylcyclohexanol has several types of protons, which will produce distinct peaks in the H-NMR spectrum:
The OH proton will appear as a broad peak around δ 2.5-5.0 ppm due to its exchange with solvent protons.
The methyl (CH3) group on the cyclohexane ring will produce a singlet peak around δ 0.9-1.0 ppm.
The five protons on the cyclohexane ring will produce a complex splitting pattern, depending on their position and neighboring atoms.
In general, if the methyl group is located in an equatorial position, the ring protons will appear as two triplets (due to coupling with the neighboring axial protons) and one multiplet (due to coupling with the other ring protons). If the methyl group is located in an axial position, the ring protons will appear as a broad multiplet.
Therefore, the H-NMR spectrum of 2-methylcyclohexanol would typically show at least three different H signals, corresponding to the OH proton, the methyl group, and the ring protons.
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Which of these examples represents a system at equilibrium?
These fish swim under a plant and five other fish come out from the plant
In a sealed flask, 500 water molecules vaporize while 500 other water molecules condense
A chef puts two pizzas into the oven and takes five pizzas out
Examples that represents a system at equilibrium are : These fish swim under a plant and five other fish come out from plant; In a sealed flask, 500 water molecules vaporize while 500 other water molecules condense.
What is meant by equilibrium?Condition in the course of reversible chemical reaction in which no net change in the amounts of reactants and products occurs is called chemical equilibrium.
Chemical equilibrium is the state when both the reactants and products are present in the concentrations which have no further tendency to change with time, so that there is no observable change in properties of system.
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The positive control for the Iodine test was the
A. Glucose solution.
B. Olive oil.
C. Albumin solution.
D. Starch solution.
E. Distilled water.
The positive control for the Iodine test was the Starch solution. The correct option is D.
In the iodine test , the negative control is the distilled water. The positive control is the starch solution. The iodine test is used to test for the starch. It interacts with the coiled molecules and it becomes the bluish - blackish color. The yellow color is the negative test for the starch. The iodine - starch test is the chemical reaction that is used for the test for the presence of the starch or for the iodine.
Thus, the starch solution is the positive control for the iodine test.
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What type of aldehydes undergoes Aldol condensation and Cannizaro reaction?
Write both the reactions
Aldehydes that contain at least one alpha hydrogen atom can undergo Aldol condensation and Cannizzaro reaction.
As per the question given,
In Aldol condensation, two aldehyde or ketone molecules react in the presence of a base to form a beta-hydroxy carbonyl compound. The reaction involves the removal of a water molecule from the alpha-carbon and carbonyl group of two aldehydes or ketones. This reaction produces Aldol, which can undergo dehydration to form an alpha-beta-unsaturated carbonyl compound.
On the other hand, in the Cannizzaro reaction, an aldehyde molecule undergoes self-oxidation and reduction in the presence of a strong base to give an alcohol and a carboxylic acid. The reaction involves the loss of a hydrogen atom from the aldehyde, which gets reduced to an alcohol, and the reduction of the other aldehyde molecule to a carboxylic acid.
Therefore, aldehydes containing at least one alpha hydrogen atom can undergo Aldol condensation and Cannizzaro reaction.
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what is not true about monosaccharides?
Fructose and Glucose cannot be distinguish by [tex]BR_{2}[/tex] /[tex]H_{2}[/tex]O and Glucose and mannose are anomers.
Since they cannot be hydrolyzed into smaller carbs, monosaccharides are the most basic types of carbohydrates. They are chemically defined as aldehydes or ketones with two or more hydroxyl groups, and they play a crucial role in the production of fuel molecules, or glycolysis, as well as nucleic acids.
Monosaccharides are carbohydrates that cannot be further hydrolyzed to produce a simpler molecule of polyhydroxy aldehyde or ketone.
[tex]BR_{2}[/tex] /[tex]H_{2}[/tex]O can be used to differentiate between glucose and fructose because fructose doesn't react with [tex]BR_{2}[/tex] /[tex]H_{2}[/tex]O. Fehling's solution can distinguish between glucose and fructose because it only produces a good test result for aldehydes, such as glucose.
Mannose and glucose are epimers because they only vary at C-2, the first asymmetric carbon atom.
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The complete question is:
What is not true about monosaccharides?
a. Optically active polyhydroxy carbonyl compounds.
b. Fructose and Glucose cannot be distinguish by [tex]BR_{2}[/tex] /[tex]H_{2}[/tex]O
c. Glucose and mannose are anomers.
d. Fructose and Glucose cannot be distinguish by Fehling's solution.
The first-order decomposition of N2O5 at 328 K has a rate constant of 1.70 . 10-3 s-1. If the initial concentration of N2O5 is 2.88 M, what is the concentration of N2O5 after 12.5 minutes?
The concentration of N2O5 after 12.5 minutes is 1.094 M.The rate law for a first-order reaction is given by:
Rate = k[A]
where k is the rate constant and [A] is the concentration of the reactant.
The integrated rate law for a first-order reaction is given by:
ln[A]t = -kt + ln[A]0
where [A]t is the concentration of the reactant at time t, [A]0 is the initial concentration, k is the rate constant, and ln is the natural logarithm.
Using the given rate constant and initial concentration of N2O5, we can calculate the concentration of N2O5 after 12.5 minutes as follows:
ln([N2O5]t/[N2O5]0) = -kt
ln([N2O5]t/2.88 M) = -(1.70 x 10^-3 s^-1)(12.5 min)(60 s/min)
ln([N2O5]t/2.88 M) = -1.530
[N2O5]t/2.88 M = e^-1.530
[N2O5]t = (e^-1.530)(2.88 M)
[N2O5]t = 1.094 M
Therefore, the concentration of N2O5 after 12.5 minutes is 1.094 M.
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which pair of elements is likely to produce a highly polar covalent bond
Oxygen and Nitrogen elements are likely to produce a highly polar covalent bond.
The likelihood of a covalent bond forming between an element with low ionization potential and an element with strong electron affinity is quite high.
The atom that will bind with carbon to form a polar covalent bond is oxygen. This is because oxygen is the most prevalent chemical element that may join with carbon to create a polar covalent bond.
When atoms with various electronegativities share electrons in a covalent link, the result is a polar covalent bond. Think about the molecule of hydrogen chloride (HCl). In order to generate an inert gas electron configuration, each atom of HCl needs an additional electron.
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determine the formula of the hydrated sulfate. the number of water molecules is usually a small whole number expressed as an integer before h2o in the formula. show calculations and use correct significant figures.
The formula of the hydrated sulfate for Epsom salt is MgSO₄.5H₂O. The number of water molecules in this hydrated sulfate formula is equal to 5.
A hydrate is a compound containing a specific mass of water in the form of H₂O. To determine the molecular formula of the hydrate,[anhydrous solid⋅xH₂O.
], moles of water per mole of anhydrous solid (x). Step of the hydrate formula :
determines the mass of water released from the compound. This is accomplished by subtracting the weight of the anhydrate from the weight of the hydrate. Converts the weight of water to moles. To do this, divide the mass of water by the molar mass of water to get the number of moles of water. Converts the mass of residual anhydrous into moles.Determines the molar ratio of water to anhydrous. Write formulas using molar ratios.Considering a 210.4 g sample of Epsom salt hydrate, heating MgSO₄.xH₂O. releases water, so the mass of the resulting anhydrate is 120.4 g. What is the molecular formula of this hydrated sulfate?
Determine the mass (in grams) of water leaving the compound.= 210.4 g MgSO₄.H₂O. - 120.4 g MgSO₄
= 90 g H2O.
Convert the weight of water to moles:= 90 g H₂O/ (18 g/mol H₂O) = 5 mol H₂O.
Convert the mass of the remaining anhydrous to moles:= 120.4 g MgSO₄ /(120.4 g/mol MgSO₄ ) = 1 mol MgSO₄.
Determine the molar ratio of water to anhydrous compound:= 5 mol H₂O /1 mol MgSO₄ = 5:1.
Since there are 5 moles of H₂O for every mole of MgSO₄, the molecular formula is MgSO₄.5H₂O. There are therefore 5 molecules of water in the formula of hydrated sulphate.
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Complete question:
determine the formula of the hydrated sulfate for Epsom salt, MgSO₄ nH₂O, the number of water molecules is usually a small whole number expressed as an integer before h2o in the formula. show calculations and use correct significant figures.
______ The aggregation of nonpolar molecules or groups in water is thermodynamically favorable due to the
A. increased entropy of the water molecules.
B. decreased enthalpy of the system.
C. increased entropy of the nonpolar molecules when they associate.
D. very strong van der Waals forces among the nonpolar molecules or groups.
What is the pH of an acetate/acetic acid solution (pKa= 4.7) in which acetic acid is 80% in its deprotonated form?
The aggregation of nonpolar of the molecules or groups in water is thermodynamically favorable is due to the increased entropy of the water molecules. The correct option is C.
The Entropy is the quantitative measure of the disorder or the randomness in the system or the element. In the thermodynamics, the entropy or the hydrophobic effect is the free energy change of the water enclosing the solute. Therefore , the existing negative free charges will enhances the effect of the hydrophilicity and thus, the aggregation of the non-polar molecules.
Thus, the increased in the entropy of the water molecules will effect the aggregation of the nonpolar molecules or the groups in the water is thermodynamically favorable. Therefore, the option C is correct.
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which examples illustrate how the property of ice floating on water supports life on earth?
Generally, aquatic animals can survive when the surface of water freezes. Usually, ice provides a habitat for land-dwelling arctic and antarctic animals.
As we know in water ice floats, it helps life survive on Earth. During the season of winter, when surface temperatures are low enough for water to freeze, floating ice forms a layer of insulation on top of lakes and seas. This ice layer usually insulates the water below it, allowing it to stay liquid, which allows the life within it to survive.
Ice provides a habitat for many animals which are suitable for them to survive. Animals like polar bear , water seal and many more loves cold habitat.
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which term refers to a neuron that is conducting an impulse?
Depolarization refers to a neuron that is conducting an impulse.
Excitable cells are those that react to electrical signals; cell depolarization, or membrane depolarization, is a process that modifies the electrical charge distribution so that the cell is less negatively charged than the environment. Excitation-prone cells include:
Neurons
muscle tissue
In physics, depolarization refers to the removal of polarity. Depolarization, however, has a slightly distinct meaning in physiological systems like cells, where it describes becoming more positively charged than the surrounding air or water.
Excited cells alter their membrane potential using electrochemical gradients, also known as concentration gradients based on ion concentration and electrical potential. The membrane becomes more positive and less negative, depolarizing these cells. Positive charges penetrate the cell during depolarization, reducing its negative charge. The membrane potential decreases as depolarization progresses.
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name given to an atom that has lost electrons to become a positive charged particle is
A positively charged ion called a cation is created when an atom loses one or more electrons.
What's the name of the phenomenon where an electron loses electrons?The process of ionization is when an atom or molecule loses or gains an electron, resulting in the formation of an ion. An anion is created when a molecule or atom obtains an electron; a cation is created when an electron is lost (a cation).
What elements possess a positive charge?Three subatomic particles exist: protons, neutrons, and electrons. Protons have a positive charge, while electrons have a negative charge, making up two of the subatomic particles. Instead of having a charge, neutrons are neutral.
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how to calculate balance equations chemistry online?
An essential skill in chemistry is the ability to balance chemical equations, and there are numerous online resources that can assist with this process.
To balance chemical equations, a variety of online tools are accessible. Here are some illustrations: Equations may be balanced for you using the balancer, a straightforward and user-friendly web application. Simply enter the equation, and the balanced equation will appear. Chemical Equation Balancer: Equations with or without oxidation numbers can be balanced using this tool. In order to better comprehend the balancing process, it also offers a step-by-step approach. The WebQC Chemical Equation Balancer is an effective tool for balancing difficult chemical equations. The balanced equation is also shown visually by this. Equation Balancer at Symbol ab: Equation balancer software is available at Symbol ab, a platform for math and science education.
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What are the 4 rules for naming ionic compounds?
The four rules for naming ionic compounds are: 1) write the name of the cation, 2) write the name of the anion, 3) combine the names and 4) use roman numerals to indicate the charge of the cation if it is a transition metal.
The cation (positive ion) is named first, followed by the anion (negative ion).
The name of the cation is the same as the element from which it is derived. If the element can form cations with different charges, the charge is indicated using Roman numerals in parentheses after the element name.
The name of the anion is derived from the name of the element, with the ending changed to "-ide".
If the compound contains a polyatomic ion (a group of atoms with a net charge), the name of the ion is used in the compound name.
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how many atoms in volume of 30 ml H20
Answer: 3.012x10^24
Explanation:
1.004x10^23 atoms are in 1 mL of water.
multiply 1.004x10^23 by 30
1-(1-phenylcyclohexyl) piperidine hydrochloride (pcp) was patented as sernyl and first tested as ______
1-(1-phenylcyclohexyl) piperidine hydrochloride (PCP) was patented as Sernyl and first tested as a dissociative anesthetic.
The main way that 1-(1-Phenylcyclohexyl)piperidine hydrochloride (PCP) affects the central nervous system is either by stimulating it or by depressing it. The signs and symptoms can differ greatly depending on the animal species and dosage. Rats and mice exhibit hyperactivity more conspicuously, and at all dose levels, these animals can also exhibit some signs of central depression, which include a loss of limb muscle coordination.
At low doses, PCP has a calming or quieting effect on pigeons, guinea pigs, hamsters, rabbits, cats, dogs, and monkeys, while at higher doses, it causes a cataleptoid reaction to general anesthesia. Pigeons, guinea pigs, dogs, and monkeys that receive PCP at dosages greater than those used for general anesthesia experience convulsive seizures. Contrarily, convulsion or exhilaration are not immediately apparent.
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What are 10 chemical properties examples?
A substance's chemical property is a quality that defines how a material interacts and generates new compounds when exposed to another substance or energy.
Some of the main examples of chemical properties are described below:
1.Reactivity: It is the ease with which a substance reacts with other substances to produce new products, for as oxygen reacting with iron to produce rust.
2.Flammability: The ability of a material, such as gasoline or propane, to ignite and burn in the presence of oxygen.
3.Toxicity: The extent to which a substance, such as lead or mercury, can affect living beings.
4.Corrosion: A substance's ability to decay and degrade when exposed to other substances, such as rust on metal.
5.pH: A measure of a substance's acidity or basicity, with low pH values suggesting high acidity and high pH values indicating high basicity.
6.Solubility: The ability of a material to dissolve in a solvent, such as salt in water.
7.Oxidation: The loss of electrons by a substance, which frequently results in the production of an oxide, such as iron rusting.
8.Reduction: It is the process through which a material gains electrons, frequently resulting in the development of a reduced chemical, such as the reaction between oxygen and hydrogen to generate water.
9.Reactivity with water: The ease with which a substance reacts with water to produce new products, such as sodium interacting with water to produce sodium hydroxide and hydrogen gas.
10.Stability: A substance's ability to resist change or decomposition, such as inert gases such as helium, which are extremely stable and do not react with other compounds under typical conditions.
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2n2 o2 → 2n2o if 0.49 mol of nitrogen reacts with 0.49 mol of oxygen, what is the limiting reactant?
2N₂ + O₂ → 2N₂O if 0.49 mol of nitrogen will reacts with 0.49 mol of oxygen, then the limiting reactant is nitrogen.
To determine the limiting reactant, we need to compare the amount of product that can be formed by each of the reactants. The reactant that produces the lesser amount of product will be the limiting reactant.
Balanced chemical equation for the reaction will be:
2N₂ + O₂ → 2N₂O
From the equation, we can see that 1 mole of O₂ reacts with 2 moles of N₂ to produce 2 moles of N₂O. Therefore, if 0.49 mol of N₂ reacts, we would need 0.49/2 = 0.245 mol of O₂ to completely react with all of the N₂.
Since we have 0.49 mol of O₂, which is greater than the amount required to react with all of the N₂, oxygen is in excess and nitrogen is the limiting reactant.
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50 POINTS!! CAN SOMEONE PLEASEEEE HELP ME do this for my chemistry class please i need it done asap!! to give me the answers your probably going to have to write it on paper then attach the picture to your answer!! thank you so much!! <3
Answer:
lewis structures :
Explanation:
4 electrons
6 electrons outer shell
3 outer shell
2 outer shell
7 outer shell
1 outer shell.
v
Paint evidence helped solve the case of the Green River Killer because investigators had:
A. high-tech investigative tools at their disposal.
B.a known suspect to gather evidence from.
C.a definitive match in the paint data query.
D.additional corroboration from other trace evidence.
Paint evidence helped investigatοrs sοlve the Green River Killer case because the paint data query yielded a definitive match. Thus, οptiοn C is cοrrect.
What is the identity οf the Green River Killer?Gary Leοn Ridgway's victims were primarily sex wοrkers and οther vulnerable wοmen, including underage runaways. The press gave him his nickname after the first five victims were discοvered in the Green River befοre his identity was revealed.
He strangled his victims, usually with his hands but sοmetimes with ligatures. He wοuld strangle them and then dump their bοdies in King Cοunty's fοrested and vergrwn areas, frequently returning tο the bοdies tο have sexual encοunters with them.
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How might a potter use chemistry?
OA. Chemistry can help a potter understand how the speed of a
pottery wheel affects the height of the pot.
OB. Chemistry can help a potter design a perfectly symmetrical pot.
OC. Chemistry can help a potter find new customers to buy his or her
products.
OD. Chemistry can help a potter mix glazes to get the desired colors.
A potter can use chemistry to better understand how a pottery wheel speed impacts the pot's height. OB. A potter's design can benefit from chemistry.
Describe a design?Several verbal and nounal senses of the word "design" exist. Design refers to the process of outlining a project's final form and functionality through the use of sketches. For instance, before building a new bridge, the government will hire a team to design it. Humans have been proven to develop an immediate thought within a few seconds, but once that impression has matured, it can take much longer to change that perception.
What exactly is chemistry?Chemistry is the area of science that focuses.
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At which of the above boundaries is sea floor created?
At divergent plate boundaries the sea floor is created.
What are divergent plate boundaries?Divergent boundaries, also called divergent plate boundaries, are linear structures that exist between two moving tectonic plates.
Diverging continental boundaries create rifts that eventually become rift valleys. Most active diverging plate boundaries are found as mid-ocean ridges between oceanic plates.
When the edge of a dense plate slides down a slope, the pressure and temperature around it increases, creating a plate drift that melts the overlying mantle, causing molten rock to rise through the plate.
A volcano is a feature of the Earth's crust where molten rock is pushed to the surface. When this lava is below the surface, it is called magma, and when it erupts, it is called lava.
As the dense plate edge moves downhill, the pressure and temperature around it rises, causing changes in the plate and melting the overlying mantle. Molten rock can rise through the plate and reach the surface of the plate as part of a volcano.
Main Types of Volcanoes:
Volcanoes come in many shapes and sizes, but they share some key characteristics. All volcanoes are connected to reservoirs of lava known as subterranean magma chambers.
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At diverging boundries , seafloor spreading takes place. The mantle's convection currents generate heat that makes the crust more flexible and less thick when tectonic plates slowly drift apart from one another.
Why is diverging boundries ?Diverging plate boundries are linear formations that occur between two moving plate tectonics. They are also known as divergent plate boundaries. Rifts are formed by diverging continental boundaries and eventually develop into rift valleys. Mid-ocean ridges between oceanic crust are where the majority of active divergent plate boundaries may be located.
Which two forms of diverging boundries are there?Lithospheric plates move apart at divergent borders, also known as constructive barriers. Continental rift zones & mid-ocean ridges are the two main forms of divergent boundaries, according to the location of their occurrence.rized by where they occur: continental rift zones and mid-ocean ridges.
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Barium sulfide decomposes into its
elements when heat and electricity are
applied.
Which reaction shows the balanced
equation for the decomposition?
A. 8BaS→ 8Ba + Sg
B. Ba₂S → 2Ba + S
C. BaS2
Ba + S₂
->
D. 2Ba₂S 4Ba + 2S
->
MARINA VINNSAMAN
A balanced equation obeys the law of conservation of mass. Here the balanced equation for the decomposition of Barium sulfide is 8 BaS → 8Ba + S₈. The correct option is A.
What is balanced equation?A chemical equation in which the amount of reactants and products on both sides of the equation are equal is defined as the balanced equation. The number of atoms of each element of the reactants and products are same on either side of the equation.
Here the balanced equation for the decomposition of Barium sulfide is denoted as:
8BaS→ 8Ba + S₈
The number of 'Ba' and 'S' atoms on both sides of the equation are equal.
Thus the correct option is A.
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what is grams into moles ?
The grams in to the moles is as follows :
The number of moles = mass in grams / molar mass in grams /mol
The conversion in between the moles and the grams is the typical. The grams to the moles conversion is related to the the atomic weight. One mole of the material comprises of the Avogadro number of the atoms. The grams to the moles conversion formula is as follows :
The number of moles = mass in grams / molar mass in grams /mol
The number of the moles of the substance can be calculated by the divinding the mass to the molar mass of the substance.
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what is hcl a strong acid?
HCL is a strong acid because it dissociates completely. An acid is said to be strong acid if it ionizes completely in the solution.
Acids are called as strong acids if that completely dissociate into their ions in water. That means in a solution all of their molecules break up. These acids yield at least one hydrogen cation (H+) per molecule. Weak acids will dissociate less than 1% that means very few of their molecules will break up to release a hydrogen ion. Strong acids will have large values for dissociation constant while weak acids will have very small values for dissociation constant. Strong acids are very corrosive such as hydrochloric acid and sulfuric acid. Weak acids can also be extremely corrosive such as hydrofluoric acid which can decalcify bone.
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The correct question is,
Is HCL is a strong acid?
a 183 g 183 g sample of bleach contains 14.0 g naocl 14.0 g naocl . calculate the mass percent of naocl naocl in the bleach.
A 183 g sample of bleach contains 14.0 g NaOCl. 7.65% is the mass percent of NaOCl in the bleach.
What is mass percent?Mass percent is the means to indicate a concentration. Moreover, it defines the element in a certain composition. A mass percentage can be used to understand the solution's composition.
It displays the amount of solute in a certain amount of solution. The solute's concentration is specified in terms of mass or moles. It's possible to represent a degree using the mass percent. Also, it describes the element during a certain mixing.
mass percent = (solute mass / mass of solution)×100
mass percent = (14.0 / 183)×100 = 7.65%
Therefore, 7.65% is the mass percent of NaOCl in the bleach.
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