Quiz 1

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Which of the following is smallest: 1 millimeter 1 meter 1 centimeter 1 kilometer 1 decimeter

1 millimeter

56.55 x 0.920 / 34.2585 =

1.51863... 152 (3 sig figures)

Round off the following measurement to three significant digits: 307.45 cm

307 cm

5.74 + 0.823 + 2.651 =

9.214... 9.21

What is 2.1 x 10^-5 written in decimal notation?

0.000021

How many grams are there in 5.211 cg?

0.05211 g

1.01 x 0.12 x 53.51 / 96 =

0.067556.... 0.068 (2 sig figures)

if a 250mL beaker weighs 95.4g what is the mass in Kilograms ?

0.0954kg

4.8 - 3.965 =

0.835.. 0.8

5.892 / 6.10 =

0.96590.. 0.966

What is the numerical value of (1.50/(1.222 x 10^3))? Express your answer using the correct number of significant figures.

1.23 x 10^-3

Express 12340 in scientific notation

1.234 x 10^4

Express 0.00012340 in scientific notation

1.2340 x 10^-4

What is the density of a substance with a mass of 45.00 g and a volume of 26.4 mL?

1.70 g/mL

in scientific notation, the number 185,000,000 is:a. 1.85 x 10^6b. 1.85 x 10^-8c. 185 x 10^6d. 185 x 10^-8e. 1.85 x 10^8

1.85 x 10^8

What is the answer, with the correct number of significant figures, for this problem?4.392 g + 102.40 g + 2.51 g =

109.30 g

The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g =

13 g

Determine the answer for the equation below with the correct number of significant figures: 3.215 x 13.2 divided by 0.218 =

195

Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 =

22

if a glass marble weighs 3156mg, what is the mass in centigrams?

315.6 cg

In scientific notation, the number 0.0046 is expressed as

4.6 x 10^-3

A calculator answer of 423.6059 must be rounded off to three significant figures. What is the answer?

424

5.02 x 89,665 x 0.10 =

45.0118... 45

The number of significant figures in the measurement of 45.030 mm is

5

Express the exponential number 5.15x10^5 as an ordinary number.

515,000


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