Chapter 2 Test

Table sugar and table salt are examples of

• atoms

• elements

• mixtures

• pure substances

Anything that has mass and takes up space is called

• matter

• energy

• heterogeneous

• homogeneous

If you heat a liquid and measure the temperature at which it boils, you are measuring a(n)

• atomic propterty

• physical property

• chemical property

• molecular property

If you describe methane as a gas that easily catches fire, you are describing a

• state of matter

• physical property

• chemical property

• chemical formula

Substances that CANNOT be broken down chemically into other substances are

• elements

• compounds

• mixtures

• solutions

All elements are composed of extremely small particles called

• compounds

• mixtures

• atoms

• molecules

Which of these statements is false?

• Oxygen and copper are examples of elements

• Elements are pure substances

• Atoms of different elements can combine to form compounds

• Atoms of different elements are the same

The change in which ice absorbs energy and melts is a(n)

• endothermic change

• exothermic change

• chemical change

• change in mass

Fireworks exploding in the sky and giving off light are an example of a(n)

• endothermic change

• exothermic change

• physical change

• change in mass

Which of the following is NOT an example of a physical change?

• gasoline burning in a car's engine

• salt dissolving in a glass of water

• crushing aluminum soda cans

• water boiling in a pot