Chemistry Ka3 Flashcards Preview

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Flashcards in Chemistry Ka3 Deck (40):
1

What does the name of a salt depend on?

The metal used
The acid used
The positive ion in the base, alkali or carbonate used

2

When magnesium reacts with hydrochloric acid, two products are hydrogen and magnesium. What is the equation?

Mg + 2HCl --> MgCl₂ + H₂

3

Mg+2HCl₂ +H₂
What is this called?

A redox reaction because it has both reduction and oxidation

4

Fe - 2e⁻ --> ???

Fe²⁺

5

What is a base?

An insoluble metal hydroxide (magnesium hydroxide) and a metal oxide (copper oxide)

6

What is insoluble?

Something that doesn't dissolve in water

7

What is an alkali?

A soluble metal hydroxide (sodium hydroxide)

8

What is an example of a metal carbonate?

Copper carbonate

9

What is potassium hydroxide?

An alkali

10

What is zinc hydroxide (insoluble)

A base

11

What is magnesium oxide?

A base

12

What is calcium oxide?

A base

13

How do u remember making salts?

MASH
BASH
AASH
MCASHC

14

What does MASH stand for?

Metal + acid --> salt + Hydrogen

15

What does BASH stand for?

Base + acid --> salt + Water

16

What does AASH stand for?

Alkali + acid --> salt + water

17

What does MCASHC stand for?

Metal carbonate + acid --> salt + water + carbon dioxide

18

Hydrochloric acid +magnesium oxide = ???

Magnesium chloride

19

Sulfuric acid + copper hydroxide =

Copper sulphate

20

Nitric acid + potassium oxide =

Potassium nitrate

21

A student wanted to make potassium nitrate. Why would it not be sensible for her to do this?

Because potassium is very reactive and may explode when in contact with nitric acid

22

A student wanted to make copper sulphate. Why would it not be sensible for her to react copper with sulfuric acid?

It will not react as the copper will not displace the hydrogen because it is less reactive

23

If a gas was produced what might you see?

Fizzing

24

What happens when a metal reacts?

It gets smaller

25

What is the symbol for magnesium sulfate?

MgSO4

26

What is the symbol for hydrogen?

H₂

27

What is the ionic equation for neutralisation?

H⁺ (aq) + OH⁻ (aq) --> H₂O (L)

28

What is this state symbol: (s)

Solid

29

What is this state symbol (g)

Gas

30

What is this state symbol: (L)

Liquid

31

What is this state symbol: (aq)

Aqueous

32

Magnesium bromide Mg²⁺ Br⁻

MgBr₂

33

Aluminium chloride Al³⁺

AlCl3

34

Aluminium hydroxide Al³⁺ OH⁻

Al³ ⁺ OH⁻ Al(OH),3
OH⁻
OH⁻

35

What is soluble

Dissolves in water

36

What is insoluble

Doesn't dissolve in water

37

What do all acids release into a solution when added to water?

H⁺ (aq) ions

38

What is the reaction between an acid and an alkali called?

Neutralisation

39

Acid + carbonate -->

salt + water + carbon dioxide

40

Magnesium nitrate
Mg² ⁺ NO,3⁻

Mg(NO,3)₂