Acids and Bases 1.2

Question 1

What is an acid? Which direction?

Answer 1

A compound that dissolves in water to form a solution with a pH lower than 7. Left

Question 2

What is an acid? Which direction?

Answer 2

A compound that dissolves in water to form a solution with a pH higher than 7. Right.

Question 2

The pH number of a solution indicates its what? It is a measure of the what?

Answer 2

Acidity. Concentration of hydrogen ions in a solution.

Question 3

A pH of 7 means that a solution is what—it’s neither an what or what?

Answer 3

Neutral. Acid nor a base.

Question 4

Red litmus paper turns blue in the presence of what?

Answer 4

A base.

Question 5

Blue litmus paper turns red in the presence of what?

Answer 5

An acid.

Question 6

An acid-base reaction is called what?

Answer 6

Neutralization.

Question 7

The neutralization reaction produces what?

Answer 7

Water and a compound called a salt.

Question 8

Neutralizaation reaction equation?

Answer 8

HCl(aq) + NaOH(aq) → NaCl(s) + H2O(l)
acid + base → salt + water