Chem Test Chapter 1.

1. Which of the following is an intensive property of matter? Bubble all that apply.

• 1. Mass

• 1. Volume

• 1. Density

• 1. Boiling/Melting points

1. Which of the following is an extensive property?

• 1. Conductivity

• 1. Heat transfer

• 1. Radioactivity

• 1. Flammability

1. True or False: A substance’s ability to be shaped into different structures or broken apart into smaller pieces is a physical property. Bubble A for true or B for false

• True

• False

1. Which of the following represents a chemical change of matter? Bubble all that apply.

• 1. Burning fuel

• 1. Metals that begin to rust

• 1. Metals that begin to rust

• 1. Bringing a cup of ice to a boil

1. Which of the following molecules are also compounds? Bubble all that apply.

• 1. O3

• 1. H2O

• 1. H2

• 1. C6,H12,O6

1. Which of the following is a pure substance?

• 1. Salt water

• 1. Dirt

• 1. Solid gold

• 1. Brass

1. How can you tell a mixture is homogeneous?

• 1. It has uniform composition

• 1. There is no separation

• 1. It has water in it

• 1. Both a and b

• 1. a, b, and c

1. Which of the following mixtures would you classify as a heterogeneous mixture?

• 1. Sugar water

• 1. Milk and cereal

• 1. Mud 

• 1. A sheet of copper

• 1. b and c

1. Which of the following cannot be broken down into smaller parts?

• 1. Compounds

• 1. Molecules

• 1. Mixtures

• 1. Elements 

1. Why is something like oxygen gas, O2, not considered a compound?

• 1. Because it needs to have more that 2 total atoms

• 1. Because it has only 1 type of element in the molecule

• 1. Because all gas particles and vapors are not compounds

• 1. Because the bonds in oxygen gas aren’t strong enough to keep it held together for long