Question

A 2.35 g sample of a substance suspected of being pure gold is warmed to 72.2 ∘C and submerged into 15.5 g of water initially at 24.1 ∘C. The final temperature of the mixture is 26.5 ∘C.
Part A
What is the heat capacity of the unknown substance?
Part B
Could the substance be pure gold?
yes or no?
it is not pure gold
for connexus answers are
1. B
2. D
3. C
4. D

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