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Flashcards in C2 Salts Deck (23)
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1

What is a precipitate?

Solid insoluble salt

2

What 2 chemicals could be used to make an insoluble salt of lead chloride?

Sodium chloride

Lead nitrate

3

How could an insoluble salt be removed?

Filtration

4

Give one use of making insoluble salts?

Photography

5

What acid is used to make a chloride salt?

Hydrochloric acid

6

What acid is used to make a sulfate salt?

Sulfuric acid

7

What acid is used to make a nitrate salt?

Nitric acid

8

How can salt solutions be made into a solid salt?

Evaporation and crystallisation

9

Metals can react with acids to make soluble salts, why cannot all metals be used in this way?

Not reactive enough or too reactive

10

How is an insoluble base like copper oxide used to make a soluble salt?

Excess copper oxide is added to acid and the extra is filtered out before evaporation and crystallisation

11

What is a soluble hydroxide?

Alkali

12

What are metal oxides and hydroxides?

Bases

13

Acids and alkalis reacted completely produce a salt solution, what substance is used to show when this has happened?

Indicator

14

Give the formula for ammonia?

NH3

15

Is ammonia an acid or an alkali?

Alkali

16

Why are ammonium salts important?

Make fertilisers

17

What ions make a solution acidic?

H+

18

What ions make a solution alkaline?

OH-

19

What scale measures acidity or alkalinity of a solution?

pH

20

Give an ionic equation that represents neutralisation.

H+ + OH- → H2O

21

What salt is produced if sodium carbonate reacts with hydrochloric acid?

Sodium chloride

22

What salt is produced if iron reacts with sulfuric acid?

Iron sulfate

23

What salt is produced if potassium hydroxide reacts with nitric acid?

Potassium nitrate