Ng Yun Lin Tasha's answer to Dessy Dayanti's Secondary 4 Biology Singapore question.
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part a is correct.
part b, always look at the ratio in the equation of the reaction, in this case the ratio of iron(III) oxide produced to carbon dioxide is 1:3, meaning 1mol of iron(III) oxide produces 3mol of carbon dioxide.
part c, if not given in the question, assume it is taken at room temperature. thus 1 mol of carbon dioxide is 24dm^3 of the gas. hence, calculate as follows.
part b, always look at the ratio in the equation of the reaction, in this case the ratio of iron(III) oxide produced to carbon dioxide is 1:3, meaning 1mol of iron(III) oxide produces 3mol of carbon dioxide.
part c, if not given in the question, assume it is taken at room temperature. thus 1 mol of carbon dioxide is 24dm^3 of the gas. hence, calculate as follows.
Date Posted:
5 years ago
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