Electrochemical Cells and Batteries

Electrochemical cells transform _ energy into electrical energy.

(a)  

Which of the follow is a battery?

• AA

• AAA

• 9-volt

• watch battery

Which is not a part of a battery

• electrode

• electrolyte

• terminal

• electrical pathway

The _ is the unit of electrical potential difference.

(a)  

A _ is anything that supplies electrical energy.

(a)  

The chemical reactions that separate positive and negative charges occur in the electrolyte at the surface of the _?

(a)