Chemistry 0620 · IGCSE · Rate of reaction

Rate of reaction — practice question

(a(i))[2]

State what the term thermal decomposition means.

(a(ii))[2]

Describe how to test for calcium ions.

(b(i))[2]

Complete the diagram to show how the volume of carbon dioxide produced during this reaction can be measured.

(b(ii))[2]

Describe the effect of lowering the concentration of hydrochloric acid and increasing the temperature on the rate of reaction, while all other conditions remain unchanged.

(c(i))[2]

State what is meant by the term hydrocarbon.

(c(ii))[1]

Name the homologous series to which propane belongs.

(c(iii))[2]

Name two substances produced by the incomplete combustion of propane.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: The breakdown of a substance / one substance forming two or more substances

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