Question

OMG, PLEASE HELP LOL. ONLY ANSWER IF YOU KNOW

A hydrogen fuel cell is more efficient than a combustion reaction because very little of the released energy is released as
1. heat
2. chemical energy
3. electrical energy.
When used at home, a fuel cell eliminates the need for
1. oxygen
2. hydrogen
3. an electrical grid because the cell is portable.

Answer 1

cemical energy and hydergon

Step-by-step explanation:

Answer 2

chemical energy

hydrogen

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