1.1 Chem Lab & 1.2 Numbers in Chemistry Review

Convert from meters to cm:  9 meters

• 900 cm

• 90 cm

• 0.9 cm

• 0.09 cm

Answer explanation

To convert meters to centimeters, multiply by 100. Thus, 9 meters x 100 = 900 cm. Therefore, the correct answer is 900 cm.

Convert 17 m to cm:

• 0.17 cm

• 0.017 cm

• 1,700 cm

• 170 cm

Answer explanation

To convert meters to centimeters, multiply by 100. Thus, 17 m x 100 = 1,700 cm. Therefore, the correct answer is 1,700 cm.

Convert 300 meters to centimeters:

• 3000 cm

• 0.3 cm

• 30,000 cm

• 3 cn

Answer explanation

To convert meters to centimeters, multiply by 100. Thus, 300 meters x 100 = 30,000 centimeters. Therefore, the correct answer is 30,000 cm.

Convert 8 kilometers to meters

• 800 m

• 80,000 m

• 8,000 m

• .008 m

Answer explanation

To convert kilometers to meters, multiply by 1,000. Thus, 8 kilometers equals 8,000 meters (8 x 1,000 = 8,000). Therefore, the correct answer is 8,000 m.

1000 grams = _____ kilograms

• 0.0001

• 1,000,000

• 10

• 1

Answer explanation

1000 grams is equal to 1 kilogram, as there are 1000 grams in a kilogram. Therefore, the correct answer is 1.

Is 20 g greater than, less than, or equal to 2 kg?

• greater than

• less than

• equal to

Answer explanation

20 g is less than 2 kg because 2 kg equals 2000 g. Therefore, 20 g is significantly smaller than 2 kg.

648 g = ____ mg

• 6,480

• 64,800

• 648,000

• 64.8

Answer explanation

To convert grams to milligrams, multiply by 1,000. Thus, 648 g x 1,000 = 648,000 mg. The correct answer is 648,000.

40 cm = ______ mm
( 1 cm = 10 mm)

• 4000

• 40

• 400

• None of the Above

Answer explanation

To convert centimeters to millimeters, multiply by 10. Thus, 40 cm x 10 = 400 mm. The correct answer is 400.

What is the basic unit of mass in the metric system?

• Liter

• Meter

• Gram

• Kilometer

Answer explanation

The basic unit of mass in the metric system is the gram. It is used to measure weight, while the liter measures volume, the meter measures length, and the kilometer is a larger unit of distance.

Select the largest unit.

• kilogram

• centigram

• decigram

• decagram

Answer explanation

The kilogram is the largest unit among the options provided. A kilogram equals 1,000 grams, while a centigram is 0.01 grams, a decigram is 0.1 grams, and a decagram is 10 grams. Thus, the correct answer is kilogram.