Acids And Alkali

Question 1

Name two acidic foods!!

Answer 1

Lemons and vinegar

Question 2

What scale is used to test alkalis and acids??

Answer 2

The pH scale

Question 3

State the range of a ph scale!!

Answer 3

0-14

Question 4

How does the pH of a strong acid compare to the pH of a weak acid!!

Answer 4

Strong acids have lower pH values compared to weak acids

Question 5

What name is given to to a substance that has a pH of 7, and provide an example.

Answer 5

A neutral substance like water

Question 6

What is an alkali??

Answer 6

An alkali is a substance that neutralises an acid

Question 7

State three hazard symbols that a strong acid might be labelled with.

Answer 7

Toxic, corrosive and irritant

Question 8

State what pH a weak alkali might have

Answer 8

8-10

Question 9

State two examples of common acids!!

Answer 9

Hydrochloric acid an sulfuric acid

Question 10

State two examples of common alkali’s

Answer 10

Sodium hydroxide and potassium hydroxide

Question 11

Name two indicators that can be used to test acids and alkalis

Answer 11

Universal indicator and litmus paper

Question 12

What is the name of a reaction between an acid and an alkali

Answer 12

Neutralisation