Pure acetic acid, which gives the sour taste to vinegar, has a melting point of 16.7 °C and a boiling point of 118 °C . Predict the physical state of acetic acid when the ambient temperature is 10 °C .

Describe each of the following as a physical or chemical property:

a. Neon is a colorless gas at room temperature.

Butane (C₄H₈) is an easily compressible gas used in cigarette lighters. It has a melting point of and a boiling point of -138.4 °C and a boiling point of -0.5 °C. Would you expect a butane lighter to work in winter when the temperature outdoors is 25 °F? Why or why not?

Identify each of the following as a physical or chemical property:

c. Gold is a good conductor of electricity.

Which of the following is not a physical property?

Describe each of the following as a physical or chemical property:

b. Hydrogen reacts readily with oxygen.

Describe each of the following as a physical or chemical property:

a. Chromium is a steel-gray solid.

Describe each of the following as a physical or chemical property:

e. Propane gas is compressed to a liquid for placement in a small cylinder.

Describe each of the following as a physical or chemical property:

b. Apple slices turn brown when they are exposed to air.