Question

A hydrogen fuel cell is more efficient than a combustion reaction because very little of the released energy is released as ___. When used at home, a fuel cell eliminates the need for___
1) A. Heat
B. Electrical energy
C. Chemical energy

2) A. Oxygen
B. Hydrogen
C. An electrical grid

Answer 1

It would be A. heat and C. an electric grid.

Hope This Helps You!
Good Luck Studying :)

Answer 2

A hydrogen fuel cell is more efficient than a combustion reaction because very little of the released energy is released as "Heat". When used at home, a fuel cell eliminates the need for "An Electrical grid"

Hope this helps!