Answer to Question #262603 in Organic Chemistry for aya

Question

Which of the following types of batteries can be recharged?

a) alkaline dry cells

b) zinc chloride

c) nickel-cadmium (Ni-Cad)

d) mercury button battery

8. Hydrogen fuel cells:

a) are recharged by plugging them into an electrical outlet.

b) are recharged by filling the cell up with fuel, similar to filling up a gas tank.

c) cannot be recharged.

d) are recharged by using electricity to reverse the chemical reactions that occurred in the cell.

9. The following substance(s) must be present for the corrosion of iron to occur.

a) oxygen and carbon dioxide

b) water and carbon dioxide

c) oxygen and water

d) oxygen 1

0. In the redox reaction of the corrosion of iron which substance is reduced?

a) iron

c) iron(III) oxide

d) water

Answer 1

7. c)

8. d)

9. b)

10. b)