Measurements Calculations And Dimensional Analysis

********* for last qustion Q9 you have to answer two times by diffrent words *****

Question 1

To write 0.000216 in scientific notation is:

Group of answer choices2.160 × 10^4

2.16 × 10^4

none of the above

2.160 × 10^−4

2.16 × 10^−4

Question 2

To write 2 × 105 in standard notation is:

Group of answer choices200000.

0.00000002

200000

0.000002

none of the above

Question 3

How many significant figures are in the measurement 9.9240 x 106 ?

Group of answer choices2

5

1

4

3

Question 4

How many significant figures are in 0.00340 m?

Group of answer choices5

3

none of the above

4

6

Question 5

How many significant figures are in 0.0001 kg?

Group of answer choices2

4

none of the above

5

1

Question 6

Write the answer for each expression using scientific notation with the appropriate number of significant figures.

12.3 * 8.2 * 0.4 = ?

Group of answer choices40.344

40.34

40.3

none of the above

40

40.

Question 7

Write the answer for each expression using scientific notation with the appropriate number of significant figures.

12.32 + 88.2 0.004 = ?

Group of answer choices100.52

100.5

100

100.524

100.

Question 8

Write the answer for each expression using scientific notation with the appropriate number of significant figures.

12.3 * 8.2 * 0.4 = ?

Group of answer choices40.34

none of the above

40.3

40.

40

40.344

Question 9

28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, from this information, calculate the density of iron.

Please report your answer in g/mL

********* for last qustion Q9 you have to answer two times by diffrent words *****

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