Question

Some fuel cells are powered by hydrogen. Scientists are looking into the decomposition of water (H2O) to make hydrogen fuel with the help of the Sun’s energy. What challenge do scientists face with this task?

Answer 1

I hope this helps

Step-by-step explanation:

Answer 2

Answer:this is because of

Hydrogen storage: directly as molecular hydrogen, and by chemical reaction with matter, in metal hydrides, by CO2, carbon–carbon chain-linking, and reduction to hydrocarbons.

• Hydrogen end use: fuel cells and combustion.which is risky