Question

Describe how a fuel cell works

Answer 1

Explanation:

When a drop of blue Litmus is added to the lemon juice it will turn from Blue to red colour because lemon juice contains citric acid and any acid turns blue Litmus Paper to red litmus paper

Answer 2

hydrogen atoms enter a fuel cell at the anode where a chemical reaction strips them of their electrons. The hydrogen atoms are now "ionized," and carry a positive electrical charge. The negatively charged electrons provide the current through wires to do work.

hope it helps....（＾ｖ＾）