Unit 4 test

Which compound is most likely formed using covalent bonds?

• SiO₂

• K₂O

• KBr

• CaBr₂

Which compound is formed when aluminum bonds with fluorine?

• AlF

• AlF₂

• AlF₃

• Al₃F

What is the formula for the compound that forms when magnesium bonds with phosphorus?

• Mg₂P

• MgP₂

• Mg₃P₂

• Mg₃P

What is the oxidation number for Oxygen?

• +1

• -1

• +2

• -2

The total number of oxygen atoms in the compound K₃PO₄ is:

• 1

• 2

• 3

• 4

Which type of bond is formed by the transfer of electrons from one to another?

• Ionic bond

• Covalent bond

• Metallic bond

• Molecular bond

Which compound contains ionic bonds?

• H₂O

• CH₄

• NaCl

• CO₂

Which formula represents a molecular compound?

• LiCl

• CaCl₂

• CO₂

• K₂O

When two atoms form a chemical bond by sharing electrons, the resulting molecule will be:

• Ionic

• Hydrogen

• Covalent

• Metallic

Which type of bonding involves positive ions in a “sea” of moving electrons?

• Ionic

• Hydrogen

• Covalent

• Metallic