30.Sodium sulfate is allowed to react with an aqueous solution of barium chloride to produce (you know). How many grams of sodium sulfate are required to produce 0.45 g of salt? a. b. C. d. e. 0.55 g 0.45 g 1.1 g 0.46 g none of the above 31. What is the answer to the following problem to the correct number of significant figures? 0.025 x 3.60 x 52.13 A) 4.7

Chemistry for Today: General, Organic, and Biochemistry
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Chapter6: The States Of Matter
Section: Chapter Questions
Problem 6.112E
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30.Sodium sulfate is allowed to react with an aqueous
solution of barium chloride to produce (you know).
How many grams of sodium sulfate are required to
produce 0.45 g of salt?
a.
b.
C.
d.
e.
0.55 g
0.45 g
1.1 g
0.46 g
none of the above
31. What is the answer to the following problem to the
correct number of significant figures?
0.025 x 3.60 x 52.13
A) 4.7
B)
C) 4.70
D) 4.6
E) 4.69
4.692
32. Which of the following correctly describes the Lewis
structure of the carbonate ion?
A) 2 single bonds, 1 double bond, 8 lone pairs
3 single bonds, 9 lone pairs
B)
C) 1 single bond, 2 double bonds, 9 lone pairs
D) 3 double bonds, 6 lone pairs
Transcribed Image Text:30.Sodium sulfate is allowed to react with an aqueous solution of barium chloride to produce (you know). How many grams of sodium sulfate are required to produce 0.45 g of salt? a. b. C. d. e. 0.55 g 0.45 g 1.1 g 0.46 g none of the above 31. What is the answer to the following problem to the correct number of significant figures? 0.025 x 3.60 x 52.13 A) 4.7 B) C) 4.70 D) 4.6 E) 4.69 4.692 32. Which of the following correctly describes the Lewis structure of the carbonate ion? A) 2 single bonds, 1 double bond, 8 lone pairs 3 single bonds, 9 lone pairs B) C) 1 single bond, 2 double bonds, 9 lone pairs D) 3 double bonds, 6 lone pairs
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