Redox Reactions

Front

What is a redox reaction?

Back

A redox reaction is a chemical reaction that involves the transfer of electrons between two species, resulting in changes in their oxidation states.

Front

What does oxidation refer to in a redox reaction?

Back

Oxidation refers to the loss of electrons by a substance, leading to an increase in its oxidation state.

Front

What does reduction refer to in a redox reaction?

Back

Reduction refers to the gain of electrons by a substance, leading to a decrease in its oxidation state.

Front

What is the oxidation number of an element in its elemental form?

Back

The oxidation number of an element in its elemental form is always 0.

Front

What is the oxidation number of hydrogen in most compounds?

Back

The oxidation number of hydrogen in most compounds is +1.

Front

What is the oxidation number of oxygen in most compounds?

Back

The oxidation number of oxygen in most compounds is -2.

Front

How do you determine the oxidation number of an element in a compound?

Back

To determine the oxidation number of an element in a compound, use the rules for assigning oxidation states, considering the overall charge of the compound.

Front

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

Back

The oxidation number of iron (Fe) in FeO is +2.

Front

What is the oxidation number of sulfur (S) in H2SO4?

Back

The oxidation number of sulfur (S) in H2SO4 is +6.

Front

What is the role of a reducing agent in a redox reaction?

Back

A reducing agent is a substance that donates electrons to another substance, causing the other substance to be reduced.