Acids and Alkalis

Question 1

Name 2 alkalis found in a lab.

Answer 1

Sodium Hydroxide and Calcium Hydroxide

Question 2

Name 2 acids that can be found in a lab.

Answer 2

Hydrochloric Acid and Sulfuric Acid

Question 3

Name 3 alkalis that can be found at home.

Answer 3

Baking Soda (Bicarbonate Soda), bleach and indigestion tablets.

Question 4

Name 2 acids that can be found at home

Answer 4

Vinegar and Lemon juice

Question 5

How can you tell if a solution is an acid or an alkali using its name?

Answer 5

If it’s name has the word “hydroxide” in it, it is an alkali. If it’s name has the word “acid” in it, then it is an acid.

Question 6

What is the purpose of Universal Indicator?

Answer 6

It can be used to show how strongly acidic or alkaline a solution is by using colour.

Question 7

Name something that can be used as a Universal Indicator.

Answer 7

Plant extracts (e.g. red cabbage)

Question 8

How does Universal Indicator/pH paper indicate how acidic/alkaline a solution is?

Answer 8

They turn-
Red in acidic solutions
Green in neutral solutions
Blue in alkaline solutions