CHEMISTRY FINAL UNIT 0 PRACTICE TEST

What is matter?

• A type of energy

• Matter that has a uniform and unchanging chemical composition

• A process in which substances change

• A state of matter

What will be discussed in the upcoming section?

• The definition of a substance

• How to measure substances

• How substances can change into different substances

• The history of substances

What is a physical property?

• A characteristic that changes the substance's composition

• A characteristic that can be observed or measured without changing the substance's composition

• A property that depends on the amount of substance present

• A property that cannot be observed or measured

Which of the following is an example of a physical characteristic?

• Reactivity with acid

• Density

• Flammability

• Chemical stability

What defines an extensive property?

• Independent of the amount of substance present

• Dependent on the chemical composition of the substance

• Dependent on the amount of substance present

• Always related to the substance's color and odor

Which of the following is an intensive property?

• Mass

• Volume

• Boiling point

• Length

What is a chemical property?

• The color or shape of a substance

• The ability or inability of a substance to combine with or change into one or more new substances

• The mass or volume of a substance

• The temperature at which a substance melts

Which of the following is included in chemical properties?

• Density

• Flammability

• Hardness

• Melting point

What are we most often interested in regarding chemical properties in this course?

• Physical appearance

• Chemical stability only

• Reaction rates and reactivity

• Electrical conductivity

What color is copper typically described as?

• Silver

• Reddish brown

• Gold

• Blue