Question 1

Which of the following is an example of a reversible chemical reaction?

Accepted Answer

H2O <=> H2 + O2

Answer

AgNO3 + NaCl -> AgCl + NaNO3

Answer

CH4 + 2O2 -> CO2 + 2H2O

Answer

2H2O -> 2H2 + O2

Answer

Fe + S -> FeS

Question 2

Which of the following is an example of a reversible chemical reaction?

Accepted Answer

CO2 + H2O <=> H2CO3

Answer

2H2 + O2 -> 2H2O

Answer

CH4 + 2O2 -> CO2 + 2H2O

Answer

NaCl + H2O -> NaOH + HCl

Answer

Fe + S -> FeS

Question 3

Which of the following best describes a reversible chemical reaction?

Accepted Answer

A chemical reaction that can proceed in both the forward and backward directions

Answer

A chemical reaction that can only proceed in the backward direction

Answer

A chemical reaction that can only proceed in the forward direction

Answer

A chemical reaction that produces a single product

Question 4

If a reaction is exothermic in the forward direction then ______________ in the reverse direction

Accepted Answer

Exothermic

Answer

Can not determine

Answer

Endothermic

Question 5

Which of the following is true about reversible reactions?

Accepted Answer

They can proceed in both forward and backward directions

Answer

They can only proceed in the backward direction

Answer

They can only proceed in the forward direction

Answer

They can proceed in neither forward nor backward directions

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