Chapter 2 Matter

Classifying Matter

100

Which of the following is not a pure substance: element, molecule, compound, mixture

What is mixture?

200

The chemical formula for water, H₂0, means that each water molecule contains what?

What is 2 hydrogen atoms and 1 oxygen atom

300

How many atoms are in a single molecule of Fe₂O₃

What is 5 atoms?

400

A group of atoms that acts as a unit is called

What is molecule?

500

Matter is defined as anything that

What is has mass and takes up space?

Properties of Matter

100

Diamonds are known for their

What is hardness?

200

Helium is used in balloons because it is

What is lighter than air?

300

A chemical property of copper is it's

What is reactivity?

400

Which of the following is an example of a chemical property: reactivity with oxygen, solubility in water, boiling point, density?

What is reactivity with oxygen?

500

Which of the following is not a physical property of iron: melting point, ability to rust, color, conductivity

What is ability of rust?

Changes of Matter

100

Which of the following is an example of a chemical change: ice melting, pounding gold into a coin, paint fading, a puddle of water evaporating

What is paint fading?

200

Which of the following is an example of a physical change: dissolving, evaporating, bending, all of these are correct

What is all of these are correct?

300

A chemical change occurs whenever

What is a new substance forms?

400

Knowing the chemical properties of a substance will tell you how the substance

What is reacts with other substances?

500

Which tool is best for separating a mixture of sand and water

What is a filter?

Density Math Problems

100

Lead has a density of 11.3 g/cm³ and a mass of 282.5 g. What is the volume?

What is 25 cm³?

200

What is the density of a sample of liquid that has a volume of 125 mL and a mass of 200 g?

What is 1.6 g/mL?

300

The mass of 20 L sample of gas with a density of 0.04 mg/L is

What is 0.8 mg?

400

A substance has a mass of 360 g and a volume of 7.5 mL. What is the density?

What is 48 g/mL?

500

Steel has a density of 7.8 g/cm³. What is the mass of a block of steel with a volume of 600.0 cm³

What is 4,700 g?

Miscellaneous

100

H₂0

What is Water?

200

Cu

What is Copper?

300

C₁₂H₂₂O₁₁

What is Table Sugar?

400

Fe₂O₃

What is Iron Oxide or Rust?

500

NaCl

What is Table Salt?