Unit 4: Chemical Compounds Practice

Which of the following is NOT an ionic compound:

• CaO
• NaOH
• BaCl₂
• CH₄

In general, this type of bond will form a compound with a very high melting point.

• Ionic

• Covalent

Which of these combinations is a metallic compound made of?

• Metal and Metal

• Nonmetal and Nonmetal

• Metal and Nonmetal

Identify the type of bond in this compound: O₂

• Ionic

• Covalent

• Metallic

Which two statements are correct about the figure shown?

• It is a covalent bond.

• Hydrogen atoms lose electrons and Carbon gains the electrons.

• It happens on metal and on another non-metal.

• The valence electrons are shared by both atoms.

Why do elements bond with each other?

• To be friends

• To fuse and make a new element

• To have 8 valence electrons

• To have a stable nucleus

A molecule is a compound made up of...

• two or more nonmetals

• two or more semimetals

• metals and metals

• metals and nonmetals

If an atom loses two electrons what charge will it have?

• -2

• -1

• +1

• +2

Predict the bond that will form between Be and F.

• Ionic
• Covalent

If an atom gains one electron what charge will it have?

• -2

• -1

• +1

• +2