07. Compound Names and Formulas

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)
• anion (- ion) first then cation (+ ion)
• either way is fine
• polyatomic ions first

Ba⁺², Br^-1

• BrBa
• Br₂Ba₂
• BaBr₂
• Br₂Ba

Tags

NGSS.HS-PS1-2

Ca⁺²P^-3

• PCa
• P₂Ca₃
• CaP
• Ca₃P₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The correct chemical formula for magnesium phosphide is

• MgP
• Mg₂P₃
• Mg₃P₂
• Mg₃(PO₄)₂

Tags

NGSS.HS-PS1-2

The name of Zn(NO₃)₂ is

• zinc nitride

• zinc nitrate

• zinc dinitrate

• zinc II nitrite

The correct name of Cu₃N₂ is

• copper (III) nitride
• copper (II) nitride
• copper nitride
• tricopper dinitride

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

What type of compound is P₃Cl₆?

• Ionic

• Covalent

• Element

• Mixture

What is the correct name for MgI₂?

• magnesium diiodide

• monomagnesium diiodide

• magnesium iodide

• magnesium II iodide

What is the name of CuSO₄?

• copper II sulfate

• copper sulfate

• copper sulfur tetroxid

• copper I sulfate