Naming molecules

What is the correct term for "bond that forms when electrons are shared"?

• ionic bond
• metallic bond
• covalent bond

What is the term for "bond that forms between a metal and a nonmetal"?

• ionic bond
• metallic bond
• covalent bond

Which of the following formulas represents carbon monoxide?

• CO
• CO₂
• NO
• SO₂

Which compound contains covalent bonds?

• NaI
• K₂O
• N₂O₃
• BeO

Covalent bonds form between 

• nonmetal and metal
• metal and metal 
• nonmetal and nonmetal

Name this compound : N₂O

• dinitrogen oxide
• nitrogen oxide
• nitrogen dioxide
• dinitrogen monoxide

Name this compound: PH₃

• triphosphorus trihydride
• phosphorus hydride
• trihydrogen monophosphide
• phosphorus trihydride

What is the correct name for the compound Al₂S₃

• dialuminum trisulfide
• aluminum sulfide
• aluminum sulfur