Which statement correctly describes a chemical equilibrium? it must take place in an open system the mass of the reactants and the mass of the products are no equal it is affected by the addition of a catalyst it does not involve a reversible reaction the concentrations of reactants and products are equal

Answers

Answer 1

Answer: In your choices, the best answer is the mass of the reactants and the mass of the products are no equal. The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction. The best describe should be the concentration of reactants and products are constant.

Answer 2

Answer:

The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction.

The term "chemical equilibrium" describes a situation in which a chemical reaction's forward reaction rate and reverse reaction rate are equal. In other words, throughout time, the reactant and product concentrations in the reaction mixture do not change. Even if the individual reactions may still be in progress, there is no net change in the reactant or product concentrations at the point of chemical equilibrium. This occurs as a result of the equalisation of the rates at which molecules react to create products and molecules disintegrate into reactants. Even though the reaction is still taking place at the molecular level, the system is in equilibrium and it appears to have stopped.

To know more about chemical equilibrium, here:

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Write the balanced chemical equation for the addition of 2 Br2 to CH3C≡CH.

Answers

CH₃C≡CH + 2Br₂ → CH₃CBr₂CHBr₂

Someone help!! ( alkenes )

Answers

2.1) An unsaturated molecule is one that has double bonds

The two molecules with double bonds are B and E

2.2) The molecular formula for a molecule with a single double-bond is “CnH2n”

So it would be C4H8

2.3) I’m not sure what the answer to this one is, sorry...Oxidation maybe?

If a person's gallbladder were removed by surgery, which of the following substances would he have the most difficulty digesting? a. carbohydrates b. nucleic acids c. fats d. proteins

Answers

Explanation:

Fats

The gallbladder stores bile ( made in the liver) which is secreted into the digestive tract to aid in the digestion of dietary fats.

12.42 m +421.0 m + 9.28 m -

Answers

Answer:

442.7m

Explanation:

12.42m+421.0m+9.28

442.7m

Every action produces an equal and opposite -- ---------- when one object exterts a force on another object,the second object pushes back with the same amount of--------- someone knows the answer

Answers

The answer will be Reaction, second will be force

Given the unbalanced ionic equation:3Mg + ____ Fe3+ ==> 3Mg2+ + ____ Fe
When this equation is balanced, both Fe3+ and Fe have a coefficient of
(1) 1, because a total of 6 electrons is transferred
(2) 2, because a total of 6 electrons is transferred
(3) 1, because a total of 3 electrons is transferred
(4) 2, because a total of 3 electrons is transferred

Answers

Answer: The correct answer is Option 2.

Explanation:

For the given redox reaction, magnesium is getting oxidized because it is loosing electrons and iron is getting reduced because it is gaining electrons.

The half reaction for oxidation and reduction is given by the equations:

Oxidation half reaction: $Mg\rightarrow Mg^(2+)+2e^-$ × 3

Reduction half reaction: $Fe^(3+)+3e^-\rightarrow Fe$ × 2

Net ionic reaction: $3Mg+2Fe^(3+)\rightarrow 3Mg^(2+)+3Fe$

Total number of electrons transferred are 6.

So, the correct answer is Option 2.

The answer is (2) 2, because a total of 6 electrons is transferred. We can know the electron transferred number form Mg to Mg2+ ion. There is 3 Mg involved and two electrons per atom. So total is 6,

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