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 37 times)

mpobi80 · **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

bookworm410 · **Reply #1 on:** Aug 27, 2018

Answer to Question 1

A

Answer to Question 2

A

mpobi80 · **Reply 2 on:** Aug 27, 2018

TYSM

strudel15

Excellent

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 37 times)

mpobi80

Round the number 0.00637 to two significant figures. A) 0.0064 B) 0.006 C) 0.00637 D) 0.0 E) ...

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bookworm410

Round the number 0.00637 to two significant figures. A) 0.0064 B) 0.006 C) 0.00637 D) 0.0 E) ...

mpobi80

strudel15