Topic 3: Chemical Reactions - Subtopic 3: Types of Chemical Reactions

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

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Front (Question)

What does oxidation and reduction involve?

Back (Answer)

• Addition or removal of oxygen from a substance

Front (Question)

What is oxidation?

Back (Answer)

Reaction where oxygen is added to an element or compound

Front (Question)

What is reduction?

Back (Answer)

Reaction where oxygen is removed from an element or compound

Front (Question)

What is a redox reaction?

Back (Answer)

Where oxidation and reduction are both taking place at the same time

Front (Question)

What is oxidation and reduction for reactions not involving oxygen?

Back (Answer)

• Oxidation is the loss of electrons • Reduction is the gain of electrons

Front (Question)

What happens when acid is added to water?

Back (Answer)

Form positively charged hydrogen ions (H⁺) which make solution acidic

Front (Question)

What happens when alkali is added to water?

Back (Answer)

Form negative hydroxide ions (OH⁻) which makes aqueous solution an alkali

Front (Question)

What is the pH scale?

Back (Answer)

• Numerical scale to show how acidic or alkaline solution is • Measures amount of ions present in solution • Below 7; acidic • Above 7; alkaline

Front (Question)

What is an indicator?

Back (Answer)

Changes colour depending on the pH of the solution to which it is added

#10

Front (Question)

What is the general word equation for an acid reacting with a base?

Back (Answer)

Acid + Base –> Salt + Water

#11

Front (Question)

What is the ionic equation for neutralisation?

Back (Answer)

H⁺ + OH⁻ → H₂O

#12

Front (Question)

What type of salt does hydrochloric acid produce?

Back (Answer)

Chlorides

#13

Front (Question)

What type of salt does sulfuric acid produce?

Back (Answer)

Sulfates

#14

Front (Question)

What type of salt does nitric acid produce?

Back (Answer)

Nitrates

#15

Front (Question)

What are the products when an acid reacts with a metal oxide?

Back (Answer)

Salt and water

#16

Front (Question)

What are the products when an acid reacts with a metal hydroxide?

Back (Answer)

Salt and water

#17

Front (Question)

What are the products when an acid reacts with a metal carbonate?

Back (Answer)

Salt, water, and carbon dioxide

#18

Front (Question)

What are the products when an acid reacts with a metal?

Back (Answer)

Salt and hydrogen gas

#19

Front (Question)

How can you identify an acid-metal carbonate reaction?

Back (Answer)

Effervescence (fizzing) due to carbon dioxide gas

#20

Front (Question)

Which metals react with dilute acids?

Back (Answer)

Only metals above hydrogen in the reactivity series

#21

Front (Question)

What happens when potassium or sodium react with acids?

Back (Answer)

They react explosively (very dangerous)

#22

Front (Question)

What is the general equation for a metal reacting with an acid?

Back (Answer)

metal + acid → salt + hydrogen

#23

Front (Question)

Is a metal + acid reaction a neutralisation reaction?

Back (Answer)

No, because no water is formed

#24

Front (Question)

What is a base?

Back (Answer)

A substance with pH above 7 (metal oxides and hydroxides act as bases)