Exam-style practice

Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations practice questions

Practise mixed syllabus-aligned questions for Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations. Aligned to AQA Gcse Chemistry.

282

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Quantitative

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Practice questions

Question 281 of 282

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a. Calculate Consider the reaction: CaCO₃ → CaO + CO₂ Calculate the total relative formula mass (Mr) of the reactants and the total relative formula mass (Mr) of the products. Show your working. (Relative atomic masses: Ca = 40, C = 12, O = 16) [4 marks] b. Explain What does your answer to part (a) demonstrate about the conservation of mass in this reaction? [2 marks]

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