Writing Ionic Compound Formulas

The formula of calcium phosphate is 

• CaPO₄

• Ca₂(PO₄)₃

• Ca₃PO₄

• Ca₃(PO₄)₂

Tags

NGSS.MS-PS1-1

The chemical formula of Iron (III)bromide is

• FeBr

• Fe(III)Br

• FeBr₃

• Fe₂Br₃

Tags

NGSS.MS-PS1-1

The chemical compound for sodium phosphate would be:

• NaPO₄

• Na₂PO₄

• Na₃PO₄

• Na(PO₄)₃

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Na¹⁺  F^1-         

• NaF

• NaF₃

• Na₃F

• Na₁F₂

Tags

NGSS.MS-PS1-1

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

• CrO

• Cr₃O₂

• Cr₂O₃

• CrO₃

Tags

NGSS.MS-PS1-1

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

• KS

• K₈S

• K₆S₃

• K₂S

Tags

NGSS.MS-PS1-1

Cu ⁺²  and  OH ^-

• CuOH₂

• Cu₂OH

• Cu(OH)₂

• correct answer is not given

Tags

NGSS.MS-PS1-1

NH₄ ⁺¹  and  C₂O₄ ^-2

• NH₄C₂O₄

• (NH₄)₂C₂O₄

• NH₄(C₂O₄)₂

• correct answer is not given

Tags

NGSS.MS-PS1-1

When adding a subscript to a polyatomic ion, you should...

• multiply any subscripts on the polyatomic ion by the subscript you are adding

• put parentheses around the polyatomic ion before adding a subscript

• write the new subscript next to any subscripts on the polyatomic ion

• put the polyatomic ion in square brackets before adding the subscript

The chemical formula for an ionic compound of potassium and oxygen is

• KO.

• K₂O.

• K₂O₂.

• KO₂.

Tags

NGSS.MS-PS1-1