Mario Cooke

Chemistry

21 January, 09:32

Assign an oxidation number to each element in the reaction.

CaF2 (s) + H2SO4 (aq) → CaSO4 (aq) + 2HF (g)

In CaF2, the oxidation number of Ca is

, and that of F is

. In H2SO4, the oxidation number of H is

, that of S is

, and that of O is

. In CaSO4, the oxidation number of Ca is

, that of S is

, and that of O is

. In HF, the oxidation number of H is

, and that of F is

.