Chemical cells + Fuel cells

Question 1

What is in a chemical cell?

Answer 1

Two different metals dipped into solution of their salts
And a salt bridge, which allows ions to pass from one solution to another

Question 2

How can we increase the voltage of a chemical cell

Answer 2

Have the metals be further apart in the reactivity series

Question 3

What is a fuel cell

Answer 3

Device that produces a voltage continuously when supplied with a fuel and oxygen.

Question 4

What is the benefit of using a hydrogen=oxygen motor

Answer 4

Quieter, Needs less maintenance, and it does not produce CO2

Question 5

Why is a Danielle cell described as being wet

Answer 5

The salt bridge is a filter paper which has been soaked in concentrated potassium nitrate solution

Question 6

What happens to the mass of metals when a Danielle cell is used

Answer 6

The mass of the metals will decrease

Question 7

What is a balanced equation for the reaction of hydrogen-oxygen fuel cell

Answer 7

2H2+O2->2H2O

Question 8

What is a fuel

Answer 8

Material that is used to produce heat, like coal, oil or gas.