Free Printable Acids and Alkalis KS3

Worksheets

Acids and Alkalis KS3

Total questions: 20

Worksheet time: 2hrs 40mins

Name

Class

Date

_{What is the hazard shown in this hazard sign?}

Explosive

Corrosive

Irritant

High level Irritant

What colour is universal indicator in a strong alkali?

Green

Orange

Purple

Red

What colour is universal indicator in a neutral solution?

Green

Orange

Purple

Red

What colour is universal indicator in strong acid?

Green

Orange

Purple

Red

Strong acids and strong alkalis are.......

Able to turn blue litmus paper red

Corrosive

Sour

Sweet

The pH scale is a range from:

1-7

0-14

1-14

1-20

A(n) ______ is a substance with a pH less than 7

Acid

Alkaline

Base

Buffer

A(n) _______ is a substance with a pH greater than 7.

Base

Acid

Buffer

Water

What is the only substance with a neutral pH of 7?

Milk

Orange Juice

Water

Blood

10.

A solution with a pH of 3.6 would be...

Acid

Base

Neutral

Acid and Base

11.

A solution with a pH of 8.6 would be...

Acid

Base

Neutral

Acid and Base

12.

According to the pH range which substance is more acidic than lemon juice

Hydrochloric acid

cabbage

milk

13.

Bleach is a strong alkali, what is the pH level of bleach?

10.5

14.

Acid + Alkali --> Salt + Water

neutralization reaction

synthesis

decomposition

single displacement

15.

A neutralization reaction will always produce...

water & salt

water

salt

water & carbon

16.

Name the salt produced from the reaction of sodium hydroxide and hydrochloric acid

(a)

17.

Name the salt produced from the reaction of calcium hydroxide and hydrochloric acid

(a)

18.

Name the salt produced from the reaction of potassium oxide and hydrochloric acid

(a)

19.

Name the salt produced from the reaction of nitric acid and sodium hydroxide

(a)

20.

Name the salt produced from the reaction of nitric acid and lithium hydroxide

(a)

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Acids and Alkalis KS3

Total questions: 20

Worksheet time: 2hrs 40mins

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