Writing Ionic Formulas

When an ionic compound forms between sodium and sulfur, what formula correctly represents the compound?

• Na₂S
• SNa₂

• Na₂S₂
• NaS

Tags

NGSS.MS-PS1-1

When an ionic compound forms between nitrogen and potassium, what formula correctly represents the compound?

• KN
• KN₃
• K₃N₃
• K₃N

Tags

NGSS.MS-PS1-1

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

• KO

• K₂O

• K₂O₁

• KO₂

Tags

NGSS.MS-PS1-1

When an ionic compound forms between oxygen and lithium, what formula correctly represents the compound?

• Li₁O₁

• Li₂O
• LiO₂
• Li₂O₂

Tags

NGSS.MS-PS1-1

When an ionic compound forms between manganese(III) and oxygen, what formula correctly represents the compound?

• MgO
• Mg₂O₃
• MnO
• Mn₂O₃

The formula for Aluminum and phosphate when they turn into an ionic compound

• AlPO₄

• Al₃(PO₄)₃

• Al₄PO

• AlPo₄

When an ionic compound forms between iron (III) and bromine, what formula correctly represents the compound?

• Br₃Fe

• Fe(III)Br
• FeBr₃
• Fe₂Br₃

Tags

NGSS.HS-PS1-2

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

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1

Cu ⁺²  and  OH ^-

• CuOH₂
• Cu₂OH
• Cu(OH)₂
• CuOh₂

Tags

NGSS.MS-PS1-1

When an ionic compound forms between phosphate and sodium, what formula correctly represents the compound?

• NaPO₄
• Na₃(PO)₄

• Na₃PO₄
• Na(PO₄)₃

Tags

NGSS.MS-PS1-1