1. Electrochemical Action

A battery consists of two or more ____ cells.

What kind of cell can be recharged?

What kind of cell cannot be recharged?

The best kind of battery depends on the kind of _____ service and on the _____ of use.

An electrical cell consists of two ____ and an ____ .

What is the general name for a material containing only one kind of atom?

What is the general name for a material containing two or more kinds of atoms?

The ___ number of an element equals the number of protons in the nucleus of the atom.

Tiny bubbles of hydrogen gas can collect on one electrode of a cell, causing a condition called ___.

Forcing electricity to run backward in a cell is a process called ___.