Reactions Of Acids- pH Scale

Question 1

What do acids produce in aqueous solutions?

Answer 1

Acids produce hydrogen ions (H + ) in aqueous solutions.

Question 2

What do aqueous solutions of alkalis contain?

Answer 2

Aqueous solutions of alkalis contain hydroxide ions (OH - ).

Question 3

What is the ph scale?

Answer 3

a measure of the acidity or alkalinity of a solution.

Question 4

what does the ph scale go up to?

Answer 4

From 0-14,

Question 5

what can ph be measured by?

Answer 5

pH can be measured using universal indicator or a pH probe.

Question 6

A solution of pH _ is neutral.

Answer 6

A solution of pH 7 is neutral.

Question 7

Acids have a pH ____ than 7.

Answer 7

Acids have a pH less than 7.

Question 8

Alkalis have a pH ____ than 7.

Answer 8

Alkalis have a pH more than 7.

Question 9

In reactions between acids and alkalis, the ________ ions and the ________ ions
__________ each other.

Answer 9

In reactions between acids and alkalis, the hydrogen ions and the hydroxide ions
neutralise each other.

Question 10

__ + (aq) + ___ - (aq) H2O (l)

Answer 10

H + (aq) + OH - (aq) H2O (l)