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Quick Part of Chemistry Unit 2 > TEST TOMORROW > Flashcards

TEST TOMORROW Flashcards

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1
Q

ACID + BASE = ?

A

SALT AND WATER

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2
Q

ACID + ALKALI = ?

A

SALT AND WATER

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3
Q

ACID + METAL = ?

A

SALT AND HYDROGEN

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4
Q

ACID + METAL CARBONATE = ?

A

SALT AND WATER AND CARBON DIOXIDE

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5
Q

Is the anode positive or negative?

A

Positive

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6
Q

Is the cathode positive or negative?

A

Negative

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7
Q

Where will electrolysis only take place?

A

In ionic substances

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8
Q

Which metals will acids react with?

A

Metals which are higher than hydrogen in the reactivity series

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9
Q

What is the type of reaction called when an acid reacts with a base?

A

A neutralisation reaction

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10
Q

What are chlorides made from?

A

Hydrochloric acid

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11
Q

What are nitrates made from?

A

Nitric acid

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12
Q

What are sulfates made from?

A

Sulfuric acid

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13
Q

Name the products when nitric acid reacts with magnesium

A

Magnesium Nitrate and Hydrogen

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14
Q

Name the products made when hydrochloric acid reacts with copper hydroxide

A

Copper Chloride and Water

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15
Q

What are metal oxides and metal hydroxides?

A

Bases

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16
Q

How do you make soluble salts?

A

By reacting an acid and an alkali

17
Q

What is a precipitate?

A

Something that can be filtered from a solution, washed with distilled water and dried

18
Q

What is electrolysis?

A

The process that uses electricity to break down ionic compounds into elements

19
Q

What must be done to ionic compounds before they can be electrolysed?

A

It must be molten or in a solution

20
Q

Why must the ionic compound be molten or in a solution?

A

Because the ions have to be free to move to the electrodes

21
Q

What happens when molten lead bromide is electrolysed?

A

Lead is produced at the negative electrode and bromine is produced at the positive electrode

22
Q

What forms at the negative electrode?

A

Metals or hydrogen

23
Q

What forms at the positive electrode?

A

Non-metallic elements

24
Q

What happens to the negatively charged ions at the positive electrode?

A

They lose their charge/electrons to become neutral atoms

25
Q

What happens to positively charged ions at the negative electrode?

A

They gain electrons to become neutral atoms

26
Q

What is gaining electrons called?

A

Reduction

27
Q

What is OILRIG?

A

Oxidation is loss, reduction is gain

28
Q

What is losing electrons called?

A

Oxidation

29
Q

Complete the half equation for the formation of chlorine at a positive electrode: 2cl- —> … + …

A

2cl- —–> Cl2 + 2e-

30
Q

What ions does water contain?

A

Hydrogen ions and hydroxide ions

31
Q

What is aluminium oxide mixed with?

A

Molten cryolite

32
Q

Why is aluminium mixed with molten cryolite?

A

To lower the melting point

Quick Part of Chemistry Unit 2 (1 decks)

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