Other questions in this quiz

2. what does a chemical cell contain?

  • chloroplasts, vacuole and cell wall
  • chemicals which react to produce electricity
  • a nucleus, cytoplasm and cell membrane
  • chemicals which react to produce gases

3. why can fuel cells run continuously?

  • closed system - reactants can flow in, but do not escape
  • open system - reactants and products stay in the same place
  • open system - reactants in, products out
  • closed system - reactants are in the same system as products

4. fuel cells produce a potential difference when..

  • the fuel is oxidised within the fuel cell
  • the fuel is reduced within the fuel cell

5. why are other cells rechargeable?

  • the chemical reaction involved is reversible
  • they can be reused
  • there are always free ions available

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