The (i)___ isomer of the complex ni(en)2cl2 is optically active, but the (ii)___ isomer is not.

Answer:

B: a changing in color of a substance

Explanation:

The answer is B because whatever substance you get it would have a reaction of color

The G1, S, and G2 stages of interphase, the mitotic phases of mitosis and cytokinesis, and the G0 phase make up the cell cycle.

The cell cycle is a four-step process in which the cell grows in size (gap 1, or G1, stage), duplicates its DNA (synthesis, or S, stage), gets ready to divide (gap 2, or G2, stage), and divides (gap 3, or S, stage) (mitosis, or M, stage). The period between cell divisions is represented by the stages G1, S, and G2, which together make up interphase.

The process through which cells multiply and divide into two new cells is known as the cell cycle. G1, S, G2, and M are the several cell cycle stages. The cell is getting ready to divide in the G1 stage. The cell next enters the S phase, where it duplicates all the DNA, to accomplish this.

There are five of these phases: prophase, prometaphase, metaphase, anaphase, and telophase. As the final physical cell division after telophase, cytokinesis is frequently regarded as the sixth stage of mitosis.

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Each amino acid differs from others in the chemical structure of the R group. So the correct answer is option A.

Amino acids are molecules that are used as the building blocks of proteins. Each amino acid has an amine group (NH₂) and a carboxyl group (COOH) connected to a central carbon atom, as well as a specific side chain, known as the R group, which differentiates one amino acid from another. Therefore, an amino acid differs from others in the chemical structure of the R group. Twenty various amino acids are used to make proteins, all of which have slightly different chemical and physical characteristics, there are polar, nonpolar, and charged amino acids.

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When H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases (option C)

A French scientist (Chatelier) postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states that If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

According to Chatelier's principle a decrease in concentration of the products will favor the forward (right) reaction.

From the above principle, we can conclude that when H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases.

Thus, the correct answer to the question is option C

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The purpose of HNO3/H2SO4 in this experiment is to generate the nitronium ion (NO2+).

The nitronium ion is an important electrophile used in nitration reactions, where it is involved in the addition of a nitro group (-NO2) to a substrate. HNO3/H2SO4 is commonly used to generate the nitronium ion by protonating and nitrating nitric acid.

The nitronium ion is formed through the reaction of nitric acid with sulfuric acid, as follows:

HNO3 + H2SO4 → NO2+ + HSO4- + H2O

Therefore, the purpose of HNO3/H2SO4 in this experiment is to generate the nitronium ion (NO2+), which is used as an electrophile in nitration reactions.

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Let's contrast the numbers given with how much solute would be present in a saturated solution at the specified temperature:

Thus, the equilibrium is represented by 20 g of KClO3 at 80 °C in 100 g of water.

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Answer: 1, magnesium & mg

2, two energy shells

Explanation:

Answer:

Explanation:

Ground state electron configuration of potassium (K) is 1s2 2s2 2p6 3s2 3p6 4s1. The valency of the element is determined by electron configuration in the excited state. This electron configuration shows that the last shell of the potassium atom has an unpaired electron (4s1). So the valency of potassium is 1.

Answer:

Ideal?

Explanation:

This question is lacking context, but it's most likely looking for ideal. There is an idea of "ideal" gasses, which are gasses the behave according the ideal gas law PV=nRT. The concept is the gasses can get very close to behaving ideally, but there is never a gas the will perfectly obey the ideal gas law. There are many factors that affect this, but I won't get into thoes since that's not what the question asked.

Answer:

22.4L

Explanation:

As the number of bonds between two carbon atoms increases, the bond length decreases.

As the number of bonds between two carbon atoms increases, then the bond length decreases.

The bond energy also increases with the number of bonds between the carbon atoms. The number of electrons between the carbon atoms does not change with the number of bonds, but rather depends on the valence electrons of the carbon atoms themselves.

C-C bond has longest covalent bond distance. Among, C, N, O and H,  covalent radius of C is maximum. Non polar bond length is higher than the polar bond length.

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Answer:

\(\boxed {\boxed {\sf 0.0018 \ mol \ H_2 O }}\)

Explanation:

First, we need to find the molecular mass of water (H₂O).

H₂O has:

Use the Periodic Table to find the mass of hydrogen and oxygen. Then, multiply by the number of atoms of the element.

There are 2 hydrogen atoms, so multiply the mass by 2.

Now, find the mass of H₂O. Add the mass of 2 hydrogen atoms and 1 oxygen atom.

Next, find the amount of moles using the molecular mass we just calculated. Set up a ratio.

\(0.032 \ g \ H_2 O* \frac{ 1 \ mol \ H_2 O}{18.0152 \ g \ H_2 O}\)

Multiply. The grams of H₂O will cancel out.

\(0.032 * \frac{1 \ mol \ H_2 O}{18.0152 }\)

\(\frac{0.032 *1 \ mol \ H_2 O}{18.0152 }\)

\(0.00177627781 \ mol \ H_2 O\)

The original measurement given had two significant figures (3,2). We must round to have 2 significant figures. All the zeroes before the 1 are not significant. So, round to the ten thousandth.

The 7 in the hundred thousandth place tells us to round up.

\(0.0018 \ mol \ H_2 O\)

There are about 0.0018 moles in 0.032 grams.

hello sister the answer is very easy it is 2 miles of oxygen

The reaction time needed to achieve 95% conversion of the limiting reactant is approximately 46.05 seconds.

To find the reaction time needed to achieve 95% conversion of the limiting reactant in an isothermal continuously stirred batch reactor, we need to use the first order rate equation:

ln(C₀/C) = kt

Where:
- C₀ is the initial concentration of the reactant
- C is the concentration of the reactant at a given time t
- k is the rate constant of the reaction
- t is the reaction time

In this case, the reaction is first order in both reactants, A and B. So, we need to consider the reactant with the lowest initial concentration as the limiting reactant.

Given:
Initial concentration of A (C₀,A) = 80 mol/L
Initial concentration of B (C₀,B) = 80 mol/L

Since both A and B are present in equal amounts initially, we can consider either A or B as the limiting reactant. Let's assume A is the limiting reactant.

To achieve 95% conversion of A, we need to find the concentration of A at that point, which is (5/100) times the initial concentration of A:
C = (5/100) * C₀,A

Now, substituting the values in the first order rate equation, we get:
ln(C₀,A/C) = k * t

Rearranging the equation, we have:
t = ln(C₀,A/C) / k

Substituting the values given in the problem:
C₀,A = 80 mol/L
C = (5/100) * C₀,A = (5/100) * 80 mol/L = 4 mol/L
k = 1E-3 L/mol/s

Calculating the reaction time:
t = ln(80/4) / (1E-3)

Simplifying the expression:
t = ln(20) / (1E-3)

Using a calculator, we find:
t ≈ 46.05 s

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Answer:

Help your self

Explanation:

Answer:

true

Explanation:

Answer:

35.8.540 its korrect now

Answer:

HI

H2SO4

Explanation:

H2SO4-diprotic acid

6.32 KJ is how much heat is given off

Answer:

in number 7 its Gas because the molecules are afloat and/or moving rapidly.

Explanation:

The problem states that 3.000 moles of O2 are present at a pressure of 1 atm, taking up a volume of 2.000 liters. We are to calculate the temperature for the given situation. The final answer is 81.73 K.

We'll use the ideal gas equation to solve for the temperature. Ideal gas equation

PV=nRT Where

P = pressure in atm

V = volume in liters

n = number of moles

R = universal gas constant

T = temperature in Kelvin

We have the values P, V, and n. We need to find T.

To do so, we'll rearrange the equation to isolate T:

PV = nRT

T = (PV)/(nR)

We can substitute the given values into the equation:

T = (1 atm × 2.000 L)/(3.000 mol × 0.08206 L atm K⁻¹ mol⁻¹)

T = (2.000 L × 1 atm)/(3.000 × 0.08206 L atm K⁻¹ mol⁻¹)

T = 81.73 K

The final answer is 81.73 K.

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The answer is action that will most likely help the patient. Of the above choices, only notifying the health care provider will most likely help the patient and the answer is (a).

Magnesium is a naturally occurring mineral that is important for many bodily functions.

However, too much magnesium can be toxic, especially in people with renal failure.

Symptoms of magnesium toxicity include decreased deep tendon reflexes, unresponsiveness, and respiratory depression.

The patient in this case is taking an antacid that contains magnesium. This could be the cause of their symptoms.

By notifying the health care provider, they can order a magnesium level and take other appropriate measures to treat the patient.

Obtaining an order to draw a potassium level is not the most important action, as this is not the most likely cause of the patient's symptoms.

Teaching the patient about magnesium-containing antacids is also not the most important action, as this does not address the patient's current symptoms

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The action that will most likely help the patient is to notify the health care provider as it will most likely help the patient.

Option A is correct.

Magnesium is a mineral that occurs naturally and is essential for numerous body processes. Magnesium, however, can be harmful in excess, particularly in those with renal failure.

Reduced deep tendon reflexes, unresponsiveness, and respiratory depression are signs of magnesium poisoning.

In this instance, the patient is taking a magnesium-containing antacid. Their symptoms can be brought on by this. The medical professional will be informed, and they will be able to treat the patient by ordering a magnesium level and other necessary actions.

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The correct option is (d) Oxidation, Reduction.

NAD+ + 2H -> NADH is an oxidation reaction and FADH2 -> FAD + 2H is a reduction reaction.

An oxidation reaction is a type of chemical reaction where electrons are transferred from one molecule, atom, or ion to another. Specifically, in an oxidation reaction, the substance that loses electrons is said to be oxidized, while the substance that gains electrons is said to be reduced. A reduction reaction is a chemical reaction in which an atom, ion, or molecule gains one or more electrons. This results in a decrease in the oxidation state of the species undergoing reduction. In a reduction reaction, the species that gains electrons is referred to as the oxidizing agent, as it facilitates the reduction of the other species involved in the reaction.

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The product of an acid-base reaction that is most likely to be an ionic compound is a salt. Option D).

In an acid-base reaction, the product that is most likely to be an ionic compound is a salt. A salt is formed when an acid reacts with a base, resulting in the transfer of ions between the two reactants. Acids typically release hydrogen ions (H+) when dissolved in water, while bases release hydroxide ions (OH-). When these ions combine, they form water (H2O), which is a neutral molecule.

However, in addition to water, the reaction between an acid and a base also produces a salt. A salt is an ionic compound composed of positive and negative ions. The positive ion usually comes from the base, while the negative ion comes from the acid. The combination of these ions results in the formation of an ionic compound, which is commonly referred to as a salt.

Therefore, the product of an acid-base reaction that is most likely to be an ionic compound is a salt. Hence option D) is correct.

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Answer:Because you need that certain number and double the number of bread to get the reactants off of the sides

Explanation: 4 bread reactants- 2meat reactants- 2 cheese reactants= 2 products

The reason for the presence of a certain number of reactants on one side is to ensure that the chemical equation is balanced.

In a balanced chemical equation, the number of atoms of each element on the reactant side must be equal to the number of atoms of that element on the product side.

Consider the equation:

\(2H_2 + O_2 - > 2H_2O.\)

This equation represents the reaction of hydrogen gas (\(H_2\)) with oxygen gas (\(O_2\)) to form water (\(H_2O\)).

To balance this equation, double the coefficient in front of \(H_2O\) on the product side, resulting in 4 hydrogen atoms and 2 oxygen atoms on both sides.

Therefore, having a certain number of reactants on one side is necessary to ensure that a chemical equation is balanced, satisfying the law of conservation of mass.

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Answer:

its d

Explanation:

Model D shows a neutral atom of carbon as it has 6 protons in the nucleus and 6 electrons in it's orbits.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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H₃PO₄ + 3Na HCO₃ →Na₃ PO₄ + 3H₂O + 3CO₂  is the  balanced chemical equation  for the following given  reaction .

A balanced equation is the equation that contains the same number of each type of atoms on both the left and right sides of the reaction arrow ,it means that both the reactants and the products are equal in the chemical reaction .

A neutralization reaction  is a chemical reaction in which an acid reacts with a base or alkali to form water and salt.

H₃PO₄ + 3Na HCO₃ →Na₃ PO₄ + 3H₂O + 3CO₂  is the  balanced chemical equation  for the following given  reaction .

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