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Author Question: Round the number 0.00637 to two significant figures. A) 0.0064 B) 0.006 C) 0.00637 D) 0.0 E) ... (Read 64 times)

mpobi80

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on: Aug 27, 2018
Round the number 0.00637 to two significant figures.
 
  A) 0.0064
  B) 0.006
  C) 0.00637
  D) 0.0
  E) 0.0063700

Question 2

A sample of calcium carbonate CaCO3 (s) absorbs 40.3 J of heat, upon which the temperature of the sample increases from 20.8 C to 27.3 C. If the specific heat of calcium carbonate is 0.82 J/g-K, what is the mass (in grams) of the sample?
 
  A) 7.6 g
  B) 5.1 g
  C) -7.6 g
  D) 0.13 g
  E) 5.3 g


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bookworm410

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


mpobi80

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Reply 2 on: Aug 27, 2018
Excellent

mcarey591

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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