alleryIf 12 g of carbon combines with 32 g of oxygen, the carbon dioxide formed is:
A44 g
B20 g
C32 g
D12 g
Answer & Solution
Correct answer: A. 44 g
1. No mass is lost or gained in the reaction.
2. So the product weighs as much as the reactants together.
3. 12 g plus 32 g gives 44 g of carbon dioxide.
4. So the answer is 44 g.
_Source: syllabus Science, Ch 9 'Atomic Foundations of Matter'_
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