Year 8 Chemical Reaction Revision Quiz

If a lit splint is held in a test tube and it blows out what gas is present?

• Oxygen Gas

• Carbon Dioxide Gas

• Hydrogen Gas

• Water Vapour

If a glowing splint is held in a test tube and it lights, what gas is present?

• Oxygen Gas

• Carbon Dioxide Gas

• Hydrogen Gas

• Water Vapour

If a lit splint is held in a test tube and a pop sound is created, what gas is present?

• Oxygen Gas

• Carbon Dioxide Gas

• Hydrogen Gas

• Water Vapour

When this gas is bubbled through limewater and the limewater turns milky, what gas is present?

• Oxygen Gas

• Carbon Dioxide Gas

• Hydrogen Gas

• Water Vapour

Looking at this chemical reaction equation a colourless gas is formed. What is the colourless gas?

Mg + 2HCl ==> MgCl₂ + colourless gas

• Oxygen

• Hydrogen

• Carbon Dioxide

look at the following equation. What are the reactants?

HCl + NaOH ==> NaCl + H₂O 

• H₂O + HCl

• HCl + NaOH

• HCl + NaOH

• HCl + NaCl

Magnesium and Oxygen is an example of what type of reaction?

• Displacement Reaction

• Combustion Reaction

• Decomposition Reaction

• Precipitation Reaction

Magnesium and Hydrochloric Acid is an example of what type of reaction?

• Displacement Reaction

• Combustion Reaction

• Decomposition Reaction

• Precipitation Reaction

Hydrochloric Acid and Sodium Hydroxide is an example of what type of reaction?

• Displacement Reaction

• Combustion Reaction

• Decomposition Reaction

• Neutralisation Reaction

Catalase and Hydrogen Peroxide is an example of what type of reaction?

• Displacement Reaction

• Combustion Reaction

• Decomposition Reaction

• Neutralisation Reaction