Quiz- Writing the formula for ionic compounds

The prefix for 9 while naming the covalent compound is

• nona

• octa

• hepta

• tri

Ba⁺², Br^-1

• BrBa
• Br₂Ba₂
• BaBr₂
• Br₂Ba

The correct chemical formula for magnesium phosphide is

• MgP
• Mg₂P₃
• Mg₃P₂
• Mg₃(PO₄)₂

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

Fe ⁺²  and  SO₄ ^-2

• FeSO₄
• Fe₄(SO₄)₂
• FeSO₂
• correct answer is not given

What is the formula for manganese(III) oxide?

• MgO
• Mg₂O₃
• MnO
• Mn₂O₃

The chemical formula of Iron (III)bromide is

• FeBr
• Fe(III)Br
• FeBr₃
• Fe₂Br₃

The first step in naming an ionic compound is always...

• Naming the anion (non-metal)

• Changing the ending to -ide

• Naming the cation (metal)

• Writing the anion charge

Write the formula for sodium carbonate.

• $NaCO_3$

• $Na_2CO_3$

• $Na_2CO$

• $Na\left(CO_3\right)_2$

Write the formula for Copper (I) nitrate.

• $CuNO_3$

• $CuN$

• $Cu_2NO_4$

• $Cu_2NO_3$