Grade 8 Review- Rate of reaction ( 22-26 Mar)

What are the products obtained when calcium reacts with Nitric acid? Tick all that apply.

• Calcium sulfate

• Calcium nitrate

• Carbon dioxide

• Hydrogen

• Water

What gas is released when magnesium carbonate reacts with hydrochloric acid?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

Which method can be used to measure the rate of a reaction? Tick all that apply.

• Reactant mass- loss method

• Condition changing method

• Gas collection by a syringe

When we want to measure the volume of gas collected from a reaction what equipment is necessary?

• Pipette

• filter funnel

• syringe

• filter paper

What are the products obtained when zinc carbonate reacts with sulfuric acid. tick all that applies

• Zinc chloride

• water

• zinc sulfate

• zinc nitrate

• carbon dioxide

Which reaction's rate is very slow? Tick all that apply.

• Formation of crude oil

• Cooking

• Oxidation of a steel structure

• Combustion of petrol