Front

What is the balanced chemical equation for the reaction of zinc with sulfuric acid?

Back

Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

Front

Which solute is most likely to be a gas at room temperature?

Back

Ce2(SO4)3 is most likely a gas.

Front

What does the reaction Cl2 + 2e- → 2Cl- represent?

Back

It represents a reduction process.

Front

What is the oxidation number of iron (Fe) in iron(II) oxide (FeO)?

Back

The oxidation number of Fe in FeO is +2.

Front

What happens to the oxidation number of an element as it is oxidized?

Back

The oxidation number increases as electrons are lost.

Front

Define oxidation in terms of electron transfer.

Back

Oxidation is the process of losing electrons.

Front

Define reduction in terms of electron transfer.

Back

Reduction is the process of gaining electrons.

Front

What is the general rule for determining oxidation states in compounds?

Back

The oxidation state of an element in a compound is determined by the number of electrons it can gain, lose, or share.

Front

What is the oxidation state of sulfur in H2SO4?

Back

The oxidation state of sulfur in H2SO4 is +6.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is obeyed.