1. Matter and Measurements

Indicate whether each of the following describes a gas, a liquid, or a solid:

b. The particles in a tank of oxygen are very far apart.

Nitric acid, which is used in the production of fertilizers, plastics and dyes, has a melting point of – 42ºC and a boiling point of 83ºC. Determine its physical state at a temperature of 110ºC.

Which of the following choices will have the lowest observed viscosity?  

Indicate whether each of the following describes a gas, a liquid, or a solid:

c. Helium occupies the entire volume of a balloon.

Indicate whether each of the following describes a gas, a liquid, or a solid:

a. Lemonade has a definite volume but takes the shape of its container

Name and describe the three states of matter.

Identify each of the following changes of state as melting, freezing, sublimation, or deposition:

d. Frost (ice) forms on the walls of a freezer unit of a refrigerator.

Identify each of the following changes of state as melting, freezing, sublimation, or deposition:

c. Heat is removed from 125 g of liquid water at 0 °C.

Identify each of the following changes of state as melting, freezing, sublimation, or deposition:

b. Snow on the ground turns to liquid water.

Identify each of the following changes of state as melting, freezing, sublimation, or deposition:

a. Dry ice in an ice-cream cart disappears.