Worksheets7.3a.Common Chemical Reactions.15MCQ
Total questions: 15
Worksheet time: 8mins
A base is the opposite to...
An alkali
An acid
A salt
A non-metal
A conductor
Stomach acid is a strong acid and would have a pH of what?
pH 1 or 2
pH 4
pH 7
pH 9
pH 13 or 14
Pure water is neutral and would have a pH of what?
pH 1 or 2
pH 4
pH 7
pH 9
pH 13 or 14
A chemical used to tell us how acidic or basic something is?
Hydrogen
Glucose
Salt
Base
Indicator
Reaction between an acid and base (alkali)?
Respiration
Photosynthesis
Combustion
Neutralisation
Rusting
What does the → mean in a chemical reaction?
Equals
Travels
Turns into
Energy moves
To the right
An exothermic reaction between oxygen and glucose?
Respiration
Photosynthesis
Reduction
Neutralisation
Rusting
An endothermic reaction between carbon dioxide and water?
Respiration
Photosynthesis
Combustion
Neutralisation
Rusting
When you burn 900g of wood, the ash remaining has a mass of only 600g. Why is this?
Smoke had a mass of 300g
300g given off as light
Mass disappears
300g of bonds broken
Particles get burnt
What does exothermic mean?
Respiration
Gives off heat
Takes in heat
Reactive
Explosive
What is this burning reaction also known as?
oxygen + hydrocarbon → carbon dioxide + water
Respiration
Photosynthesis
Combustion
Neutralisation
Rusting
Products of a neutralisation reaction?
Salt + hydrogen
Water + salt
Carbon dioxide + water
Glucose + oxygen
Acid + base
The test for hydrogen gas?
Squeaky pop test
Turns limewater cloudy
Relights a glowing splint
Turns universal indicator red
Turns iodine black
Products of aerobic respiration?
Salt + hydrogen
Water + salt
Carbon dioxide + water
Glucose + oxygen
Acid + base
Products of metal + acid reaction
Salt + hydrogen
Water + salt
Carbon dioxide + water
Glucose + oxygen
Acid + base
