C2.6

Question 1

What can be made from acids

Answer 1

Soluble salts

Question 2

What can be made from solutions of ions

Answer 2

Insoluble salts

Question 3

When does a neutralisation reaction happen

Answer 3

When a acid and alkali react

Question 4

What are the state symbols

Answer 4

S
L
Aq
G

Question 5

How can soluble salts be made

Answer 5

By reacting acids with: metals,insoluble bases and alkalis

Question 6

What are not all metals suitable for

Answer 6

Reacting with acids

Question 7

Why are not all metal suitable to react with acids

Answer 7

The metal is too reactive or not reactive enough

Question 8

What happens when you react acids with insoluble bases

Answer 8

The Base is added to the acid until no more can react and then the excess is filtered off

Question 9

What can indicators be used for

Answer 9

To show when the acid and alkali have completely reacted to produce a salt solution

Question 10

What can be crystallised

Answer 10

Salt solutions to produce solid salts

Question 11

How can insoluble salts be made

Answer 11

Mixing appropriate solutions of ions so that precipitate can be formed

Question 12

What can precipitation be used for and example

Answer 12

To remove unwanted ions from solutions e.g treating water

Question 13

Examples of 2 bases

Answer 13

Metal oxides and hydroxides

Question 14

What are alkalis

Answer 14

Soluble hydroxides

Question 15

What do the production of particular salts depend on

Answer 15

The acid used

The metal in the base or alkali

Question 16

How does ammonia produce an alkaline solution

Answer 16

Dissolving ammonia in water

Question 17

What is ammonia used to produce

Answer 17

Ammonium salts

Question 18

What are ammonium salts important for

Answer 18

Fertilisers

Question 19

What ion makes a solution acidic

Answer 19

Hydrogen ions

Question 20

What ions makes a solution alkaline

Answer 20

Hydroxide ions

Question 21

What is the ph scale

Answer 21

A measure of acidity or alkalinity

Question 22

What is ph7

Answer 22

Neutral

Question 23

What happens in neutralisation

Answer 23

Hydrogen ions react with hydroxide ions to produce water

Question 24

What is the neutralisation equation

Answer 24

H+OH👉🏾H2O

Question 25

What are salts

Answer 25

Ionic compounds

Question 26

What do acid + alkali make

Answer 26

Salt and water

Question 27

What do acid and metal make

Answer 27

Salt and hydrogen

Question 28

What does acid and metal oxide make

Answer 28

Salt and water

Question 29

What does acid and metal carbonate make

Answer 29

Salt and water and carbon dioxide

Question 30

What does an acid need to be before reacting

Answer 30

Aqueous

Question 31

Why does the dye in the indicator change colour

Answer 31

Depending on whether the solution is above or below a certain ph

Question 32

What is the universal indicator

Answer 32

A combination of dyes which gives the colours on the ph scale

Question 33

What neutralises each other

Answer 33

Acids and bases

Question 34

The more reactive the metal…..

Answer 34

The faster the reaction will happen

Question 35

What doesnt copper react with

Answer 35

Dilute acids

Question 36

What indicates the rate of reaction

Answer 36

The rate at which bubbles of hydrogen are given off

Question 37

How can we check the presence of hydrogen

Answer 37

Burning a splint giving off a squeaky pop sound

Question 38

What does the name of the salt depend on

Answer 38

The metal and acid used

Question 39

What will hydrochloric acid produce

Answer 39

Chloride salts

Question 40

What will sulphuric acid always produce

Answer 40

Sulphate salts

Question 41

What does nitric acid produce when neutralised

Answer 41

Nitrate salts