Dr. Shima - Quiz 2 Revision PART 2

Calcium sulfide

• CaS
• Ca₂S₂
• Ca₂S
• CaS₂

Potassium oxide

• KO₂
• K₂O
• K₃O₂
• K₂O₃

AlF₃

• aluminum fluoride
• aluminum(I) fluoride
• aluminum(II) fluoride
• aluminum(III) fluoride

CaO

• Calcium oxygen
• Calcium(I) oxide
• Calcium oxide
• calcium(II) oxide

OF₂

• monoxygen fluoride
• oxygen difluoride
• dixoygen trifluoride
• oxygen fluoride

N₂H₄

• dinitrogen tetrahydride
• nitrogen trihydride
• dinitrogen quatrahydrogen
• nitro hydride

PCl₃

• Phosphorus tetrachloride
• phosphorus trichloride
• phosphorus dichloride
• monophosphorus trichloride

If an atom becomes an ion with a 2+ charge, what does that mean?

• It has lost 2 electrons
• It has gained 2 electrons
• The atom is in period 2
• The atom has an atomic # of 2

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

How do the following two elements bond together?
K¹⁺  S^2- 

• KS
• K₈S
• K₆S₃
• K₂S