1. Mountains are most likely formed
a. when glaciers melt.
b. from earthquakes.
C. when land sinks.
d. where tectonic plates collide.

The chemist is most likely investigating Gay Lussac's law. To study the changes in temperature affect the pressure of the gas when a fixed amount of gas is heated in a sealed glass container. Therefore, option (D) is correct.

Gay-Lussac's law states that when the volume of the gas is kept constant the pressure of a gas is directly proportional to the absolute temperature.

The mathematical expression of Gay Lussca's law can be written as follows:

P/T = k

It can be also represented as the pressure being directly proportional to the temperature of the gas.

P ∝ T                    (where V volume of gas is constant)

or

\(\frac{P_1}{T_1} =\frac{P_2}{T_2}\)

Where P₁ and T₁ are the initial temperature and pressure of the gas. The P₂ and T₂ are the final temperature and pressure of the gas.

As the container is sealed on heating the volume of the gas will not change.  On increasing the temperature the molecules of the gas acquire more and more kinetic energy. So the pressure of the gas will increase.

Therefore, the chemist is investing the Gay-Lussac's law by noticing how changes in temperature affect the pressure of the gas.

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cycloheptatrienyl cation is the compound that is aromatic in nature.

Aromaticity is a characteristic in which any planar system in which there is complete delocalization of the pi electron in the ring, and the system contain 4n+2 pi electrons in the ring is called aromatic. Example : Benzene, naphthalene, anthracene etc.

According to Huckel's rule, an aromatic compound must have (4n + 2)π electrons that form generally forms an uninterrupted π electron cloud. In addition, it must be planar and also cyclic. If the compound is not planar and cyclic then it is also not aromatic.

The cycloheptatrienyl (tropylium) cation is aromatic because it also has 6 electrons in its pi system. It is planar, cyclic and also has conjugated system.

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Answer: Taking measurements

Explanation:

Apex

Answer:

D

Explanation:

Because B and C are talking about the climate. And A is just saying something general about the climate! :)

Answer:

d

Explanation:

The molecular weight of cerium(IV) nitrate hexahydrate is 446.24 g/mol. Therefore, one mole of cerium(IV) nitrate hexahydrate contains one mole of cerium(IV) ions, which will combine with four moles of nitrate ions to form one mole of cerium(IV) nitrate hexahydrate.

The formula for the concentration of ions in a solution is C = n/V where C is the concentration of ions, n is the number of moles of ions, and V is the volume of the solution in liters. The first step in solving this problem is to calculate the number of moles of cerium(IV) nitrate hexahydrate in 150.0 mL of a 0.565 M solution. This can be done using the following formula:n = M x V n = 0.565 mol/L x 0.150 L= 0.08475 mol of cerium(IV) nitrate hexahydrate This amount contains four times as many moles of nitrate ions as cerium(IV) ions.

Therefore, the number of moles of nitrate ions is: nitrate ions = 4 x 0.08475 militate ions = 0.339 molThe volume of the solution is 150.0 mL, which is equal to 0.150 L. Using the formula given above, we can calculate the concentration of nitrate ions :C = n/V= 0.339 mol/0.150 LC = 2.26 M Therefore, the concentration of nitrate ions in the solution is 2.26 M.

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Answer: antimycin A is more potent than rotenone.Rotenone only inhibits electrons flow into the election transport chain at Complex 1 (electrons from NADH are restricted) Complex II (electrons for fatty acyl-CoA and FADH2) does not get affected by rotenone and so even though ETC becomes slow it does not stop completely.

Explanation:

Answer:

Rigid container holds hydrogen gas at a pressure of 3.0 atmospheres and a temperature of 2 degrees Celsius. The pressure if the temperature is raised to 10 degrees Celsius will be 15 atmospheres based on the law of pressure for gas.Explanation:

The reagents necessary for the acylation of an aromatic ring via Friedel-Crafts conditions are an acyl chloride (also known as an acid chloride) and a Lewis acid catalyst, typically aluminum chloride (AlCl3).

The Friedel-Crafts acylation is a type of electrophilic aromatic substitution reaction that involves the introduction of an acyl group (R-C=O) onto an aromatic ring. The acyl chloride serves as the acylating agent, providing the acyl group for the reaction.

In the presence of a Lewis acid catalyst, such as AlCl3, the acyl chloride undergoes activation. The Lewis acid coordinates with the chlorine atom of the acyl chloride, creating an electrophilic acylium ion. This highly reactive electrophile then reacts with the aromatic ring, resulting in the substitution of a hydrogen atom with the acyl group.

The Lewis acid catalyst plays a crucial role in this reaction by facilitating the formation of the electrophile and promoting the reaction between the electrophile and the aromatic ring.

Overall, the reagents required for the acylation of an aromatic ring via Friedel-Crafts conditions are an acyl chloride and a Lewis acid catalyst, such as AlCl3.

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Answer:

39 mol AgNO3

Explanation:

We have the equation 4HNO3 + 3Ag -----> 3AgNO3 + NO + 2H2O

We want to calculate the number of silver nitrate (AgNO3) moles that would be produced from 52 moles of nitric acid ( HNO3 )

We can calculate this by using mole ratio as well as dimensional analysis.

The mole ratio of Silver nitrate to nitric acid based on the balanced equation is 3AgNO3:4HNO3.

Using this we can create a table: The table is attached.

Breakdown of the table.

The moles of nitric acid cancel out and we multiply 52 by 3/4 to get 39 moles of Silver nitrate.

Answer:

its FALSE

Explanation:

FAKE   ITS NOT REAL

Answer:

combustible.

Explanation:

The substances which burn in air are called combustible. Oxygen (in air) is essential for combustion. During the process of combustion, heat and light are given out.

Hope this helped!!!

Answer: flammable

Explanation:

The correct answer is D) The element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁵ is Mn, which has 25 electrons in total.

The electron configuration is a way of representing the arrangement of electrons within an atom or ion. The numbers and letters in the configuration represent the energy levels, subshells, and number of electrons in each subshell.

In this case, the configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁵ represents a neutral manganese atom with 25 electrons. The first two electrons occupy the 1s orbital, followed by two in the 2s, six in the 2p, two in the 3s, six in the 3p, two in the 4s, and finally five in the 3d subshell.

This configuration explains why manganese is a transition metal with five valence electrons and exhibits a variety of oxidation states in chemical reactions.

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To reach break point chlorination in a 96,000 gallon pool with a difference of 0.4 ppm between the free chlorine and total chlorine levels, approximately 7.68 ounces of chlorine is needed.

To calculate the amount of chlorine needed to reach break point chlorination in a 96,000 gallon pool, we first need to find the difference between the total chlorine and free chlorine levels. Break point chlorination is achieved when the free chlorine level equals the total chlorine level.

Given that the free chlorine level is 1.4 ppm and the total chlorine level is 1.8 ppm, the difference between them is:

1.8 ppm - 1.4 ppm = 0.4 ppm

Now, we need to determine the amount of chlorine required to raise the free chlorine level by 0.4 ppm in a 10,000 gallon pool. The given information states that it takes 2 ounces of dry chlorine (67% concentration) to raise a 10,000 gallon pool's chlorine level by 1 ppm.

To calculate the amount of chlorine required to raise the free chlorine level by 0.4 ppm in a 10,000 gallon pool, we can set up a proportion:

2 ounces / 1 ppm = X ounces / 0.4 ppm

Solving for X (the amount of chlorine needed for 0.4 ppm increase in a 10,000 gallon pool):

X = (2 ounces / 1 ppm) * 0.4 ppm = 0.8 ounces

Now, we can calculate the amount of chlorine needed for the 96,000 gallon pool by scaling the chlorine required for the 10,000 gallon pool:

Amount of chlorine needed = (0.8 ounces / 10,000 gallons) * 96,000 gallons

Amount of chlorine needed = 0.8 ounces * 9.6 = 7.68 ounces

Therefore, approximately 7.68 ounces of chlorine is needed to reach break point chlorination in the 96,000 gallon pool.

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yes it is a element.

An increase in temperature will shift the equilibrium towards the left side of the reaction, which means more H2 and I2 will be formed at the expense of HI.

This is because the reaction is exothermic, which means it releases heat, and Le Chatelier's principle states that a system at equilibrium will shift in a way that counteracts any stress or change in conditions. In this case, an increase in temperature is a stress that the system will try to counteract by producing more of the reactants, H2 and I2, which will consume some of the excess heat.

When the temperature increases in the closed system containing the equilibrium reaction

H2(g) + I2(g) + heat ⇌ 2HI(g),

the equilibrium will shift in the direction that absorbs the added heat. In this case, the endothermic reaction (left to right) absorbs heat. Therefore, increasing the temperature will result in the formation of more HI(g), shifting the equilibrium to the left.

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Answer:

72.0366 gramos de Al

Explanation:

2.67 moles Al* 26.98 gramos Al/ 1 mol Al= 72.0366 gramos de Al

If 3.25 mol of argon gas takes up 100 l at a specific temperature and pressure, how much space does 14.15 mol of argon occupy under the same circumstances

The most prevalent gas in the atmosphere after nitrogen and oxygen is argon. Argon is a noble gas, making it fully inert, like helium. It is a colourless, odourless gas that has no effect on other substances at all. Despite being a gas, argon has the ability to combine with other substances in specific situations.

The hotness of matter or radiation is expressed by the physical quantity known as temperature. There are three different types of temperature scales: those that are determined using the average translational kinetic energy per freely moving molecule, like the SI scale;

1) V1/n1 = V2/n2

100/3.25 = V2/14.15

V2 = 435.4 L

2) PV = nRT

V = nRT/P

= 0.637×0.08206×304×760/742

=16.3 L

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Answer: bases

Explanation:

C. Walking on wet floors shows that Friction is undesirable

It would be 2.515 yards. This is because to convert cm into yards, you would need to divide the length value by 91.44 so in your case, it would be 230÷ 91.44 which equals 2.51531.

Hope that helps!

Explanation:

i hope i have been useful buddy.

good luck ♥️♥️.

In the hydrogenation of alcohol, Ethanol is the reducing agent and it loses electron.

Alcohol hydrogenase transform ethanol to Acetaldehyde. This known as carcinogen. In this Acetaldehyde is more toxic compound. Alcohol dehydrogenases catalyze the oxidation of primary and secondary alcohols to the corresponding aldehyde or ketone by the transfer of a hydride anion to NAD+ with release of a proton.

Ethanol + NAD^+ ---> acetaldehyde + NADH + H^+

The half reactions are:

Ethanol --------->Acetaldehyde + 2H^+ + 2e (oxidation)

NAD+ + 2H+ + 2e- ------->NADH + H^+ (Reduction)

Ethanol is oxidized to acetaldehyde, because it loses e- .NAD+ is reduced to NADH, because it gain of e− . NAD is the oxidizing agent. Oxidizing agent gains e− and therefore reduced during reaction. Ethanol is the reducing agent. Reducing agent loses e−and therefore oxidized during reaction . Alcohol dehydrogenase is also involved in the toxicity of other types of alcohol.

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The "air" that puffs up a potato chip bag is primarily composed of nitrogen gas (N₂).

Nitrogen gas is used for packaging due to its non-reactive nature. When the bags are filled with nitrogen gas, it displaces the oxygen inside, creating a controlled atmosphere. This is done to prevent the chips from getting stale. Oxygen can lead to oxidative reactions, causing the chips to go rancid or lose their crispiness. Nitrogen, being an inert gas, doesn't react with the chips or affect their taste or texture.

It acts as a protective barrier, shielding the chips from moisture and oxygen, thereby maintaining their freshness and extending their shelf life. The use of nitrogen gas ensures that the chips remain crispy and flavorful when you open the bag.

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Answer:

A. True hope this helped

Genetic engineering improved the lives if individuals with insulin because it helps the body use and store sugar, since people with diabetes can't produce insulin.

A double replacement reaction, also known as a double displacement reaction or a metathesis reaction, is a type of chemical reaction in which ions are exchanged between two compounds option(3).

In this reaction, the positive and negative ions of two compounds switch places, resulting in the formation of two new compounds.

The general form of a double replacement reaction is AB + CD → AD + CB, where A, B, C, and D represent elements or groups of elements. During the reaction, the cations of the compounds (positively charged ions) trade places, as do the anions (negatively charged ions). This exchange of ions leads to the formation of two new compounds, with the cation of one compound combining with the anion of the other compound.

Unlike single replacement reactions where a single element replaces another in a compound, double replacement reactions involve the exchange of ions. The reaction typically occurs in aqueous solutions or when compounds are dissolved in a solvent. However, double replacement reactions can also occur in other states, such as when two ionic compounds are in the solid state and react.

To summarize, a double replacement reaction involves the exchange of ions between two compounds, resulting in the formation of two new compounds. This reaction does not involve the loss of atoms or the exchange of electrons between individual atoms.

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Answer:

\(4.4*10^{14}\)Hz

Explanation:

Explanation:

electronic confirmation=1s^2,2S^2,2P^6,3S^2

atomic no.is 12 therefore :- this is magnesium

Period=3

Block=s-block

Group=II A

The values of molarity and volumes for the given questions are  2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

Relation between the molarity and volume of the solution will be shown by the following equation:
M₁V₁ = M₂V₂, where

M₁ & V₁ is the molarity and volume of one solution whereas M₂ & V₂ are the molarities and volume of the another solution.

V₂ = (750)(2.8) / (1) = 2,100 mL

M₂ = (0.15)(125) / (25) = 0.75 M

M₂ = (100)(0.15) / (150) = 0.1 M

V₂ = (10)(250) / (0.05) = 50,000 mL

M₂ = (1.5)(345) / (250) = 2.07 M

V₂ = (2.4)(500) / (1) = 1,200 mL

Hence required values of molarity and volume are 2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

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