Balancing #3: How many Polyatomic Ions?

Select all that are polyatomic ions?

• NH₄⁺

• PO₄^3-

• CO₃^2-

• Co²⁺

• HCl

Select all that are polyatomic ions?

• HCO₃^1-

• C₂H₃O₂^1-

• C₃H₈O

• NaO^1-

• I don't know

Select all that contain polyatomic ions?

• NH₄Cl

• NaPO₄

• HCO₃

• H₂O

• NaOH

Select all that contain polyatomic ions?

• NH₄OH

• Fe₃(PO₄)₂

• C₃H₈

• CO₂

• H₂

Generally, what do the polyatomic ions have in common?

• 2 or more capital letters

• 2 or more elements

• The letter O

• Metal atom

• A charge

How do you determine the number of carbon atoms in 3Al₂(CO₃)₃?

• Multiply by Subscript after Carbon

• Multiply by Subscript after parentheses

• Multiply by Subscript after Aluminum

• Multiply by Coefficient before Aluminum.

• I don't know

How do you determine the number of polyatomic ions in 3MgCO₃?

• Count, because there is no parentheses.

• Subscript in the parentheses

• Subscript after the parentheses

• Multiply by Coefficient

• Add the Coefficient

How do you determine the number of polyatomic ions in 3Al₂(CO₃)₃?

• Subscript before Parentheses

• Subscript in the parentheses

• Subscript after the parentheses

• Multiply by Coefficient

• Add the Coefficient

How many polyatomic ions are in NH₄Cl?

• 1

• 2

• 3

• 4

• 6

How many polyatomic ions are in HClO₃?

• 1

• 2

• 3

• 4

• 5