Acids and Alkalis

Question 1

What colours do acids and alkalis turn red litmus?

Answer 1

Alkalis———> blue
Acid————> red
Neutral——> dark red

Question 2

Why do bee and wasp stings cause pain?

Answer 2

Bee and wasp stings cause pain because they introduce venom into your body, tightening the blood cells. Bee stings are acidic and wasp stings are alkali.

Question 3

How can you reduce pain from bee and wasp stings?

Answer 3

-You can reduce pain for wasp and bee stings by making the area cold.
-You can reduce pain for wasp stings by neutralising it by putting vinegar on it.
-You can reduce pain for bee stings by neutralising it by putting baking soda on it.

Question 4

What is the pH of a bee sting?

Answer 4

A bee sting has a pH of 3 (same as vinegar).

Question 5

What is the pH of a wasp sting?

Answer 5

A wasp sting has a pH of 9 (same as bicarbonate of soda).

Question 6

What is a base?

Answer 6

A substance with a pH greater than 7 that can neutralise an acid.