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4. Chemical Changes

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is produced when a metal reacts with oxygen?

Back (Answer)

metal + oxygen -> metal oxide

#2
Front (Question)

What is oxidation?

Back (Answer)

Gain of oxygen; loss of electrons

#3
Front (Question)

What happens to reactivity in terms of electrons?

Back (Answer)

The more easy it is to lose electrons, the more reactive the metal is

#4
Front (Question)

Mnemonic for the reactivity series?

Back (Answer)

Please send Charlie monkeys and cute zebras in tall long hard cages most securely guarded please

#5
Front (Question)

What is reduction?

Back (Answer)

Loss of oxygen & gain of electrons

#6
Front (Question)

What are the products of metal + acid?

Back (Answer)

Salt and hydrogen

#7
Front (Question)

What is OILRIG?

Back (Answer)

oxidation is loss, reduction is gain

#8
Front (Question)

What can metals more reactive than carbon be extracted using?

Back (Answer)

Electrolysis

#9
Front (Question)

What can metals less reactive than carbon be extracted using?

Back (Answer)

Reduction using carbon, coke or charcoal

#10
Front (Question)

What can elements less reactive than hydrogen be extracted using?

Back (Answer)

They don’t need extracting - they can occur native

#11
Front (Question)

What is displacement?

Back (Answer)

When a more reactive element takes the place of a less reactive element

#12
Front (Question)

How do you work out the relative atomic mass?

Back (Answer)

Multiply each mass number of each isotope by its % abundance Add together Divide by 100

#13
Front (Question)

What are bases?

Back (Answer)

Substances that react with acids and neutralise them (form a salt and water and sometimes carbon dioxide)

#14
Front (Question)

What is a base that is soluble in water also called?

Back (Answer)

An alkali

#15
Front (Question)

Are most bases insoluble?

Back (Answer)

Yes

#16
Front (Question)

What are acids?

Back (Answer)

Substances that react with water to release H+ ions

#17
Front (Question)

What are alkalis?

Back (Answer)

Bases that are soluble in water and react with water to release OH- ions

#18
Front (Question)

What some common acids?

Back (Answer)

Hydrochloric acid, sulphuric acid, nitric acid

#19
Front (Question)

What does acid + metal oxide give?

Back (Answer)

Acid + metal oxide -> salt + water

#20
Front (Question)

What does acid + metal hydroxide give?

Back (Answer)

Acid + metal hydroxide -> salt + water

#21
Front (Question)

What does acid + metal carbonate give?

Back (Answer)

Acid + metal carbonate -> salt + water + carbon dioxide

#22
Front (Question)

What does acid + ammonia give?

Back (Answer)

Acid + ammonia -> ammonium salt

#23
Front (Question)

What do acids react with water to give?

Back (Answer)

H+ ions

#24
Front (Question)

What do bases form when reacting with acids?

Back (Answer)

Salt and water (and sometimes carbon dioxide)