Fuel Cells

Question 1

what are the 2 types of cells

Answer 1

chemical and fuel

Question 2

what is a fuel cell

Answer 2

hydrogen and oxygen are used to produce a voltage and only water is the product

Question 3

what are the steps to make a chemical cell

Answer 3

• place a piece of zinc in zinc sulfate solution
• place a piece of copper in a copper sulfate solution
• place a piece of filter paper soaked in a potassium chloride solution between the 2 containers
• use crocodile clips to connect the 2 pieces of metal and to create a current

Question 4

how does a chemical cell work

Answer 4

electrons will flow through from the zinc to the copper because zinc is more reactive. ions pass through the filter paper into the other beaker. creating a current

Question 5

what are 2 advantages of chemical cells

Answer 5

portable
cheap

Question 6

what are 2 advantages of hydrogen-oxygen fuel cells

Answer 6

produce only water as waste
produce a voltage as long as the fuel and air are supplied

Question 7

what are 2 disadvantages of chemical cells

Answer 7

contains harmful substances
will stop working when one of the reactants is used up

Question 8

what are 2 disadvantages of hydrogen-oxygen fuel cells

Answer 8

not portable
expensive