Write the balanced symbol equation for the reaction between hydrochloric acid and sodium hydroxide.

H 2 SO 4 + NaOH -> Na 2 SO 4 + H 2 O

How can you prepare sodium chloride (table salt) using the method of neutralisation?

React sodium hydroxide with hydrochloric acid

React sodium chloride with sulfuric acid

React sodium carbonate with nitric acid

What happens in a displacement reaction?

Two substances combine to form a new substance

A more reactive element displaces a less reactive one from its compound

Substances change phase from solid to liquid

Energy is absorbed by the surroundings

How does temperature affect the rate of a chemical reaction?

Higher temperatures slow down reactions

Lower temperatures speed up reactions

Higher temperatures speed up reactions

Temperature has no effect on reactions

Balance the equation for the reaction: Zinc + Copper(II) sulfate -> Zinc sulfate + Copper.

Zn + CuSO 4 -> Zn 2 SO 4 + CuSO 4

What is the purpose of a catalyst in a chemical reaction?

To increase the concentration of products

To increase the rate of reaction without being consumed

To change the color of reactants

Describe how concentration affects the rate of a chemical reaction.

Higher concentration decreases the rate

Lower concentration increases the rate

Higher concentration increases the rate

Concentration has no effect on the rate

Chemical changes Free MCQ Practice Test with Solutions

	Year 9 Chemistry (Cambridge) 9 videos\|3 docs\|3 tests

	Year 9 Chemistry (Cambridge) 9 videos\|3 docs\|3 tests

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