Formula Writing

What's the chemical formula for magnesium iodide?

• MgI₂

• Mg²⁺I^-

• Mg₂I

• MgI

Tags

NGSS.MS-PS1-1

What's the chemical formula for lithium oxide?

• LiO

• Li₂O

• LiO₂

• Li⁺O^2-

Tags

NGSS.MS-PS1-1

The correct chemical formula for aluminum carbonate is _______.

• 2Al³⁺3CO₃^2-

• 2Al₃CO₃

• Al₃(CO₃)₂

• Al₂(CO₃)₃

Tags

NGSS.MS-PS1-1

Which of the following is the correct chemical formula for copper (II) sulfate?

• CuSO₄

• Cu(SO₄)₂

• CuS

• Cu₂S

Tags

NGSS.MS-PS1-1

Lead (IV) sulfite has the chemical formula _______.

• PbSO₃

• Pb(SO₄)₂

• Pb₂(SO₃)₄

• Pb(SO₃)₂

Tags

NGSS.MS-PS1-1

Match each name to a chemical formula​

• SCl₆

• bromine pentachloride

• BO₂

• boron dioxide

• N₂O

• diphosphorous pentoxide

• BrCl₅

• dinitrogen monoxide

• P₂O₅

• sulfur hexachloride

Tags

NGSS.MS-PS1-1

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)

• anion (- ion) first then cation (+ ion)

• either way is fine

• polyatomic ions first

Ca⁺², O^-2

• CaO

• OCa

• Ca_-2O₊₂

• Ca₂O₂

Tags

NGSS.MS-PS1-1

Ca⁺²P^-3

• PCa

• P₂Ca₃

• CaP

• Ca₃P₂

Tags

NGSS.MS-PS1-1

K⁺, O^-2

• KO

• K₂O

• K_-2O₂

• O₂K

Tags

NGSS.MS-PS1-1