pH Types

Question 1

What colour is an alkali?

Answer 1

Purple/Blue

Question 2

What colour is neutral?

Answer 2

Green

Question 3

What colour is an acid?

Answer 3

Red/Orange/Yellow

Question 4

How do you neutralise an acid?

Answer 4

You add alkaline to the acid

Question 5

How do you neutralise alkaline?

Answer 5

You add acid to the alkaline

Question 6

An example of an everyday neutralisation?

Answer 6

Adding baking soda to a bee sting
Adding vinegar to a wasp sting

Question 7

How do you find the pH of a white powder?

Answer 7

Add water to a beaker, put a spatula of the white powder inside of the beaker and put in pH paper

Question 8

Name an acid you would find at home

Answer 8

Lemons (Lemon juice)

Question 9

Name an acid you would find at a lab

Answer 9

Hydrochloric acid

Question 10

Name an alkali you would find at home

Answer 10

Baking soda

Question 11

Name an alkali you would find in the lab

Answer 11

Sodium hydroxide

Question 12

How do you know if something has a higher reactivity

Answer 12

If something bubbles more then it has a higher reactivity

Question 13

What does a chemical reaction always produce?

Answer 13

A new substance

Question 14

4 observations of a chemical reactions are…

Answer 14

See, hear, feel and smell

Question 15

3 examples of the uses of crude oil

Answer 15

Petrol
Making chemicals
Road construction