Hydrogen fuel cells can be used to power cars. which statements about a fuel cell are correct?
1. the balanced equation for the reaction is h2 02 → h20.
2. the fuel cell generates electricity.
3. in the fuel cell hydrogen is reduced.
4. the reactants are gases at room temperature.
a. 1 and 2
b. 1 and 3
c. 2 and 4
d. 3 and 4