Acids And Bases

Question 0

Base def.

Answer 0

Substance that causes red litmus paper to turn blue

Question 1

Acid def.

Answer 1

Substance that turns blue litmus paper red

Question 2

Everyday acids

Answer 2

Lemon juice
Vinegar
Rain water

Question 3

Everyday bases

Answer 3

Toothpaste
Bleach
Indigestion tablets

Question 4

What is a ph scale

Answer 4

Scale from 0-14

tells you how acidic or basic something is

Question 5

What are the Phs

Answer 5

Neutral: 7
Alkali: greater than 7
Acidic: less than 7

Question 6

What is an indicator

Answer 6

An indicator is a chemical which shows, by means of a colour change, whether a substance is an acid or a base. Eg litmus paper, universal indicator.

Question 7

What is universal indicator paper

Answer 7

Paper tells you the ph

Question 8

When does neutralisation happen

Answer 8

A neutralisation reaction occurs when an acid and a base react together and neutralise each other to form a salt and water.

Question 9

Acid+base

Answer 9

Salt and water

Question 10

What happens when acids and carbonates react

Answer 10

An acid and a carbonate react to produce a salt, water and carbon dioxide