A metal and a nonmetal forms an ______.

• ionic compound
• covalent compound
• metallic compound
• element

A nonmetal and a nonmetal forms a ___

• ionic compound
• covalent compound
• metallic compound
• element

How many TOTAL atoms are in the compound CaCO₃?

• 3
• 5
• 6
• 4

How many TOTAL atoms are on the compound 2NH₃?

• 5
• 8
• 6
• 4

How many TOTAL atoms are in the compound Ba(NO₃)₂?

• 9
• 7
• 8
• 10

How many TOTAL atoms are in the compound 2Al₂(SO₄)₃?

• 12
• 34
• 28
• 42

Which of the following is an ionic compound?

• NaCl
• H₂O
• CF₄
• NO₃

Which of the following is a covalent compound?

• H₂O
• MgF
• CaCl₂
• Li₂O

Which of the following is NOT an element?

• Co
• SO
• Mg
• H

In the compound 3H₂O, the number 2 represents a __.

• Subscript
• Coefficient
• Reactant
• Product