Question 1

To write 0.000216 in scientific notation is:

Group of answer choices
2.160 × 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 choices
200000.
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 choices
2
5

1

4

3

Question 4

How many significant figures are in 0.00340 m?

Group of answer choices
5
3

NONE OF THE ABOVE

4

6

Question 5

How many significant figures are in 0.0001 kg?

Group of answer choices
2
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 choices
40.344
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 choices
100.52
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 choices
40.34
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