Acids And Bases

Question 1

Everyday acids

Answer 1

Can be in food such as lemon juice and vinegar and they have a sharp sour taste these are not dangerous

Question 2

Laboratory acids

Answer 2

They are strong acids that are corrosive such as sulfuric acid

Question 3

Bases:

Answer 3

Another group of chemicals they are the opposite of acids many are used everyday and they can be as corrosive and dangerous as acids e.g toothpaste and limewater

Question 4

Alkalis

Answer 4

Some bases that dissolve in water e.g drain cleaner

Question 5

Neutral?

Answer 5

Another group of substances that are neither acid nor base including water and salt solution they are said to be neutral

Question 6

Indicators;

Answer 6

Is a chemical that shows by means of a colour change whether a substance is and acid or base

Question 7

Indicator example

Answer 7

Litmus paper
Universal indicator

Question 8

Litmus paper

Answer 8

Will change from blue to red in acids and from red to blue in bases

Question 9

Universal indicator

Answer 9

Mixture of dyes that change to different colours according to how strong the acid or base is- give a value on the ph scale

Question 10

The ph scale

Answer 10

0-7 acid
7 neutral
7-14 alkali

Question 11

Neutralisation

Answer 11

When acids and bases are mixed together they react and neutralise or cancel each other they react to produce a salt and water

Question 12

How is a neutralisation done

Answer 12

It is done by a acid base titration

Question 13

Name acid and base used in and acid base tritation

Answer 13

Dilute sodium hydroxide
Dilute hydrochloric acid

Question 14

Name equipment needed in an acid base tritation

Answer 14

Pipette
Pipette filler
Burette
White tile