The pH Scale

Question 1

What is the pH scale?

Answer 1

A scale that measures the strength of an acid or an alkali

Question 2

The pH scale goes from pH _ (being a strong acid) to pH __ (being a strong alkali)

Answer 2

1 to 14

Question 3

What is an indicator?

Answer 3

Something used to tell whether a solution is acidic or alkaline

Question 4

______ and _____ _____ are two types of indicator

Answer 4

Litmus and Universal indicator

Question 5

Litmus or Universal Indicator?

Is a mixture of different indicators
Shows the pH of a substance

Answer 5

Universal indicator

Question 6

Litmus or Universal Indicator?

Has only one colour change
Only shows whether a substance is acidic or alkaline, not its pH value

Answer 6

Litmus

Question 7

On Universal indicator paper, what colour is pH 9?

Answer 7

Green

Question 8

What colour is pH 2? Is it acidic, alkaline or neutral?

Answer 8

Red-Orange | Acidic

Question 9

What colour is pH 14? Is it acidic, alkaline or neutral?

Answer 9

Dark Purple | Alkaline

Question 10

What colour is pH 7? Is it acidic, alkaline or neutral?

Answer 10

Yellow | Neutral

Question 11

What colour and number on a pH scale is neutral?

Answer 11

Yellow | 7