ionic compound formulas

In a chemical formula, the total positive charge and negative charge must add up to equal _____.

• 0

• 1

• 2

• 3

When writing the chemical formula of a compound that contains more than one of a particular polyatomic ion, _____ must be used.

• ionic charges

• parenthesis

• Greek prefixes

• lower case letters.

What is the correct formula for Ammonium bonding with Phosphate?

• NH₄PO₄

• NH₄₃PO₄

• (NH₄)₃PO₄

• NH₄(PO₄)₃

What is the correct formula for aluminum bonding with sulfer?

• Al₃S₂

• Al₂S

• AlS₂

• Al₂S₃

What is the correct chemical formula for magnesium bonding with iodine?

• MgI₂

• Mg₂I

• MgI

• Mg₂I₂

What is the correct formula of the potassium bonding with oxygen?

• KO

• K₂O

• KO₂

• K₂O₂

_______ is an ion that contains more than one atom.

• monatomic ion

• complex ion

• polyatomic ion

• diatomic ion

Which of the following compounds contains the Fe³⁺ ion?

• FeS
• FeCl
• Fe₂O₃
• FeO

Which of the following formulas represents an ionic compound?

• CaCl₂
• C₂H₆
• N₃O₅
• SiO₂

What is the formula for calcium bonding with sulfate?

• CaS

• CaSO₄

• Ca₂S₂

• Ca₂(SO₄)₂