Scientific Notation and Significant Figures

Question 1

The O–O bond length in oxygen gas is 1.20741 10–10 m. The atomic radius is exactly of the O–O bond length. Which is the atomic radius of oxygen, correctly written in scientific notation with the correct number of significant figures?

Revolt · Accepted Answer

6.03705 10–11

Question 2

Joseph divides 8.64 by 2.0. How many significant figures should his answer have?

Revolt · Accepted Answer

two

Question 3

What is the correct way to represent 5600 L using scientific notation?

Revolt · Accepted Answer

5.6 103 L

Question 4

Which is the correct way to write 602,200,000,000,000,000,000,000 in scientific notation?

Revolt · Accepted Answer

6.022 1023

Question 5

What is the correct way to write 1,550,000,000 in scientific notation?

Revolt · Accepted Answer

1.55 109

Question 6

Jon performs the following calculation.Which value from his calculation most strongly affects the number of significant figures in the answer?

Revolt · Accepted Answer

1

Question 7

Which number is equal to –906,060?

Revolt · Accepted Answer

–9.0606 105

Question 8

Joan writes four numbers on the board in standard form, and then she writes their scientific notation. The table below shows her numbers. Joan’s NumbersRowNumber in standard formNumber in scientific notation17,1007.1 1032–0.000041–4.1 10–53–39,000–3.9 1044120,0001.2 106In which row of the table did Joan make a mistake in writing the scientific notation?

Revolt · Accepted Answer

4

Question 9

Henry divides 1.060 g by 1.0 mL to find the density of his water sample. How many significant figures should he include in the density value that he reports?

Revolt · Accepted Answer

two

Question 10

Which is the correct way to represent 0.0035 kg by using scientific notation?

Revolt · Accepted Answer

3.5 10–3 kg

Scientific Notation and Significant Figures Answers

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