Understanding Chemical Compounds

What does the subscript in a chemical formula indicate?

• The type of chemical bond

• The number of atoms of an element in a compound

• The charge of the compound

• The temperature at which the compound is stable

How do the properties of a compound generally compare to the properties of the elements it contains?

• They are always more reactive

• They are always the same

• They are usually very different

• They are always less dense

What is the ratio of sodium ions to chloride ions in sodium chloride?

• 2:1

• 1:2

• 1:1

• 3:1

How many carbon atoms are present in one unit of glucose?

• 6

• 12

• 8

• 10

Which of the following best describes a chemical compound?

• A single element in its pure form

• A solution of gases

• A substance with chemically bonded atoms of two or more elements

• A mixture of elements