Scientific Notation and Significant Figures

Question 1

48,000,000,000 g =

Revolt · Accepted Answer

A: 4.8 × 1010 g

Question 2

Which number corresponds to the number in scientific notation?3.21 × 104 kg = kg 2.0 × 10-5 L = L

Revolt · Accepted Answer

Selection 1: 32,100; Selection 2: 0.000020

Question 3

52,000,000 km = significant figures

Revolt · Accepted Answer

B: 2

Question 4

What rules should you follow when adding and subtracting? Check all that apply.

Revolt · Accepted Answer

B: The exponents need to be the same so the leading numbers can be added or subtracted.; C: The result has the same number of decimal places as the least precise number.

Question 5

Consider the following equation:0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ?How many digits to the right of the decimal point should be used to report the result?

Revolt · Accepted Answer

2

Question 6

What rules should you follow when multiplying and dividing? Check all that apply.

Revolt · Accepted Answer

A: The exponents in scientific notation should be added when multiplying, and subtracted when dividing.; D: The result has the same number of significant figures as the number with the fewest significant figures.

Question 7

Question 7

Revolt · Accepted Answer

2

Question 8

0.000000655 mL =

Revolt · Accepted Answer

A: 6.55 × 10-7 mL

Question 9

Question 9

Revolt · Accepted Answer

B

Question 10

3,000. g = significant figures

Revolt · Accepted Answer

C: 4

Scientific Notation and Significant Figures Answers

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