Predicting the charge of ions

What is the charge of the Mg ion in --> MgCl2

• +1

• +2

• -1

• -2

What is the charge of the Fluorine ion in the following --> CaF2

• +1

• +2

• -1

• -2

What is the charge of the Ca ion in the following --> CaCl₂

• +1

• +2

• -1

• -2

What is the charge of the oxygen atom in --> Na₂O

• +1

• +2

• -1

• -2

What is the charge of the Lithium atom in --> Li₂O

• +1

• +2

• -1

• -2

What is the charge of the Iron atom in --> FeCl₃

• +1

• +2

• +3

• -3

What is the charge of the Chlorine atom in --> FeCl₃

• +1

• +3

• -3

• -1

What is the charge of the Sulfate ion in --> Na₂SO₄

• +1

• +2

• -2

• -4

What is the charge of the hydroxide ion in --> Mg(OH)₂

• +1

• -1

• +2

• -2

How many hydroxide ions are in --> Mg(OH)₂

• one OH ion

• two OH ions

• three OH ions

• four OH ions