Unit 3 - Quiz 4: Salts

How many atoms are in 2 Al 3 O 2 ?

10

How many atoms are in 2 Fe?

2

How many atoms are in O 2 ?

2

Complete the chemical formula: H 3 O + + OH -

2H 2 O

How many atoms are in 5 C?

5

How many atoms are in 4 O 2 ?

8

A change in temperature causes a change in mass. True or False?

False

The movement of charged particles cannot pass through an electrolyte to produce an electric current. True or False?

False

A change in temperature causes a change in density. True or False?

True

All matter has mass and takes up space. True or False?

True

Most salts are not healthy for human consumption. True or False?

True

New substances are produced in a chemical change. True or False?

True

The heat of vaporization of water is one of the highest known. True or False?

True

When an acid and a base are mixed, the excess ions:

decrease neutralize each other combine to form water

Electrolytes are able to conduct electricity because they contain many _______.

ions

Acids and bases react with each other in a chemical reaction called _____.

neutralization

If water is evaporated after a neutralization reaction, what remains?

salt