Ionic Formulas Practice: Balancing Charges

What is the correct formula for Calcium Fluoride?

• CaF

• CaF2

• Ca2F

• Ca2F2

How many fluoride ions balance one calcium ion?

• 2

• 1

• 4

• 3

What is the correct representation for Magnesium Oxide?

• Mg1O1

• MgO

• Mg2O

• MgO2

Which of the following is not a correct charge balance for an ionic compound?

• Mg2+ with O2-

• Na+ with Cl-

• Ca2+ with 2 F-

• Sr2+ with P3-

Which element pairs with magnesium to form Magnesium Oxide?

• Hydrogen

• Fluorine

• Chlorine

• Oxygen

What is the formula for Strontium Phosphide?

• Sr2P

• Sr3P2

• Sr2P3

• SrP

How many strontium ions are needed to balance two phosphide ions?

• Four

• One

• Two

• Three

What charge does phosphide typically carry?

• 1+

• 3-

• 1-

• 2+

What does 'binary' in binary ionic compounds refer to?

• Two charges

• Two compounds

• Two molecules

• Two types of atoms

Which of these is a binary ionic compound?

• H2O

• NaCl

• C6H12O6

• CO2