Chem H Unit 1A Review

Multiple Choice

Which is the correct order of metric prefixes from largest to smallest?

• Kilo, Hecto, Deka, Base Unit, Deci, Centi, Milli

• Milli, Centi, Deci, Base Unit, Deka, Hecto, Kilo

• Base Unit, Kilo, Hecto, Deka, Deci, Centi, Milli

• Kilo, Deka, Hecto, Base Unit, Deci, Centi, Milli

Open Ended

Why is it important for scientists to use a standard system of measurement like the metric system?

Multiple Choice

Convert 9 meters to cm.

• 900 cm
• 90 cm
• 0.9 cm
• 0.09 cm

Multiple Choice

8 kilometers = _______ meters.

• 800 m
• 80,000 m
• 8,000 m
• .008 m

Multiple Choice

Convert 5 cm to mm.

• 5,000mm
• 0.5 mm
• 0.05 mm
• 50 mm

Multiple Choice

1000 grams = _____ kilograms

• 0.0001
• 1,000,000
• 10
• 1

Multiple Choice

Metric unit used to record mass.

• cubic centimeter (cm³)

• grams (g)
• milliliter (mL)

• liter (L)

Match

Match volume, mass, and density to their definitions.

• how many atoms makes up the object

• how much space the object takes up

• how much matter is in a given amount of the object

mass

volume

density

• mass

• volume

• density

Multiple Choice

Assume the image is to scale.

In this image, the VOLUME of A is _____ the volume of B.

• equal to

• greater than

• less than

Multiple Choice

Assume the image is to scale.

In this image, the DENSITY of A is _____ the mass of B

• equal to

• greater than

• less than

Open Ended

What is the formula for density, and how can you use it to find the mass if you know the density and volume?

Multiple Choice

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 0.14 g/cm³

• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Multiple Choice

If a block of wood has a density of 0.6 g/cm³ and a mass of 120 g, what is its volume?

• 200 cm³
• 0.005 cm³
• 50 cm³

• 72 cm³

Multiple Choice

A graduated cylinder is filled with water to a level of 40.0 mL. When a piece of copper is lowered into the cylinder, the water level rises to 63.4 mL. Find the volume of the copper sample.

If the density of the copper is 8.9 g/cm³ , what is its mass?

• 23.4 g

• 0.380 g

• 208 g

• 2.63 g

Match

Match the numbers.

• 12,000

• 0.0000012

• 1,200,000

• 0.0012

• 0.00012

1.2 x 10⁴

1.2 x 10^-6

1.2 x 10⁶

1.2 x 10^-3

1.2 x 10^-4

• 1.2 x 10⁴

• 1.2 x 10^-6

• 1.2 x 10⁶

• 1.2 x 10^-3

• 1.2 x 10^-4

Multiple Select

Select all of the CORRECT statements about significant figures.

• Zeros between nonzero digits are always significant.

  ex: 102,000

• All zeros are always significant.

  ex: 102,000.0

• Only digits 1-9 are significant.

  ex: 102,000

• Trailing zeros in a number with a decimal point are always significant.

  ex: 102,000.0

• Zeroes preceding a number are never significant

  ex: 0.0012

Match

Match the number with the correct amount of sig figs.

• 1

• 2

• 3

• 4

• 5

2,000

0.00073

805

0.09040

1000.0

• 2,000

• 0.00073

• 805

• 0.09040

• 1000.0

Multiple Choice

Round 17.1 x 0.13

• 2.22

• 2.2

• 2.223

• 2

Multiple Choice

Round 1,007.1 + 13.4566

• 1020.557

• 1020.56

• 1020.6

• 1021

Multiple Choice

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Multiple Choice

A set of data are all close to each other, but they are not close to the actual value.  This set of data can be described as...

• accurate
• precise
• both precise and accurate

Multiple Choice

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate

Multiple Select

Mark all that apply.
If the actual density of zinc is 7.134g/mL, what can be said about Sam's data?

• good precision

• poor precision

• good accuracy

• poor accuracy

Multiple Select

Mark all that apply.
If the actual density of zinc is 7.134g/mL, what can be said about Sara's data?

• good precision

• poor precision

• good accuracy

• poor accuracy

Open Ended

After reviewing these topics, do you have any questions or would you like to know more about any specific concept covered in this unit?

What would you MOST like to review before the test?