Grade 10 Physical Sciences · Chemical Change

Describe physical and chemical change

Decide whether a change is physical or chemical and give a reason (melting ice is physical, burning paper is chemical).

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Grade 10 Chemistry Physical and Chemical changeMiss Martins Maths and Science

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Question 1.6 · November 2023 · Paper 2 · Provincial · 2 marks

Four options are provided as possible answers to the following questions. Each question has only ONE correct answer. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1.9) in the ANSWER BOOK, e.g. 1.10 D.

1.6 Which of the following equations represents a chemical change?(2)

A $H_{2} O(s) \to H_{2} O (ℓ)$
B $2 H_{2} O (ℓ) \to 2 H_{2} (g) + O_{2} (g)$
C $NaC ℓ (s) \to Na^{+} (aq) + C ℓ^{-} (aq)$
D $CO_{2} (s) \to CO_{2} (g)$

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