Measurements, Calculations, and Dimensional Analysis
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