CAIE IGCSE Chemistry Hydrogen Oxygen Fuel Cell Reaction
Practise identifying hydrogen and oxygen as fuel-cell reactants, water as the only chemical product and the correctly balanced overall equation.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- name hydrogen and oxygen as the reactants and water as the only chemical product
- write and balance the overall equation as two hydrogen plus oxygen forming two water
- recognise the cell as converting stored chemical energy into useful electrical energy
4.2.1—Hydrogen–oxygen fuel cell uses question 1
[Maximum number: 2]
This question is about chemical reactions and electricity.
Question (a)
(a)
Fuel cells are used to generate electricity.
[ 2 ]
Question (i)
(i)
Name the reactants in a fuel cell.
[ 1 ]
hydrogen and oxygen
Question (ii)
(ii)
Name the waste product of a fuel cell.
[ 1 ]
water
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