C2 Topic 1 & 2

Question 1

Which carbonates are soluble

Answer 1

Sodium, potassium, ammonium

Question 2

Most hydroxides are

Answer 2

Insoluble

Question 3

Which hydroxides are soluble

Answer 3

Sodium, potassium, ammonium

Question 4

All nitrates are

Answer 4

Soluble

Question 5

Most chlorides are

Answer 5

Soluble

Question 6

Which chlorides are not soluble

Answer 6

Silver, lead

Question 7

Most sulphates are

Answer 7

Soluble

Question 8

Which sulphates are insoluble

Answer 8

Lead, barium, calcium

Question 9

Ions can’t conduct electricity when they are … But they can when they are …. Or ….

Answer 9

Ions can’t conduct electricity when they are solid, but they can when they are molten or dissolved in water

Question 10

Sodium flame test

Answer 10

Yellow

Question 11

Potassium flame test

Answer 11

Lilac

Question 12

Calcium flame test

Answer 12

Red

Question 13

Copper flame test

Answer 13

Green blue

Question 14

Testing for carbonate ions CO3 2-

Answer 14

Add dilute acid
Test gas with limewater
It will bubble
Limewater will turn cloudy

Question 15

Testing for chloride ions

Answer 15

Add nitric acid
Shake
Add silver nitrate solution
White precipitate of silver chloride

Question 16

Sulphate ions

Answer 16

Add HCl
Shake
Add barium chloride
White precipitate barium sulphate forms

Question 17

Most carbonates are

Answer 17

Insoluble

Question 18

Carbonate ion

Answer 18

CO3 2-

Question 19

Hydroxide ion

Answer 19

OH-

Question 20

Nitrate ion

Answer 20

NO3 -

Question 21

Sulphate ion

Answer 21

SO4 2-

Question 22

Properties of transition metals

Answer 22

Form highly colourful compounds
High melting and boiling points
Are less reactive
Hard

Question 23

Properties of alkali metals

Answer 23

Soft solids
Low melting and boiling points
More reactive