Acids and Alkali

Question 1

What hydrodgen ions are in an acid?

Answer 1

H+

Question 2

Is pH 14 a strong acid or alkali?

Answer 2

Alkali

Question 3

What is the pH of pure water?

Answer 3

7

Question 4

Add red litmus to alkali. What’s the colour change?

Answer 4

Red to blue

Question 5

What kind of reaction occurs when you mix an acid and an alkali?

Answer 5

Neutralisation

Question 6

Describe the corrosive hazard symbol

Answer 6

A sketch of a hand and a black rectangle being disintegrated when coming in contact with substances from two test tubes.

Question 7

A triangle with an ‘!’ in the middle

Answer 7

Warning

Question 8

A hazrd with a skull on it

Answer 8

Toxic

Question 9

pH, PH, or Ph. Which is correct?

Answer 9

pH

Question 10

What chemicals are formed when you react an acid and an alkali?

Answer 10

A salt and water

Question 11

Provides oxygen to make other substances burn more fiercely

Answer 11

Oxidising

Question 12

What does a yellow colour indicate when using a universal indicator?

Answer 12

Weak acid

Question 13

What hydrogen ions are in an alkali?

Answer 13

OH-

Question 14

What does universal indicator do?

Answer 14

Helps guess the pH of something.

Question 15

What does the pH scale do?

Answer 15

Tells us the property of a substance.