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Question 10 (1 point)
Use the law of conservation of matter to solve the following question.

Sample X has a mass of 22.7 g and reacts with sample Y to form sample XY with a total mass of 86.9 g. What is the mass of sample Y?

a
64.2 g
b
75.2 g
c
109.6 g
d
115.8 g

All Answers 1

Answered by GPT-5 mini AI
Mass is conserved: mass X + mass Y = mass XY. So mass Y = 86.9 g − 22.7 g = 64.2 g.

Answer: a) 64.2 g