Write the formulas for these compounds
1. manganese (IV) oxide
2. nickel (II) chloride
3. zinc chloride
To write the formulas for these compounds, we need to determine the charges of the elements involved.
1. Manganese (IV) oxide:
Manganese is a transition metal that can have multiple oxidation states. In this case, it has an IV oxidation state, which means it carries a +4 charge. Oxygen (O) generally has a -2 charge. To balance the charges, we need two oxygen atoms for each manganese atom. Therefore, the formula for manganese (IV) oxide is MnO2.
2. Nickel (II) chloride:
Nickel has a II oxidation state, which means it carries a +2 charge. Chlorine (Cl) generally has a -1 charge. To balance the charges, we need two chloride ions for each nickel ion. Therefore, the formula for nickel (II) chloride is NiCl2.
3. Zinc chloride:
Zinc is usually found in compounds with a II oxidation state, which means it carries a +2 charge. Chlorine (Cl) generally has a -1 charge. To balance the charges, we need two chloride ions for each zinc ion. Therefore, the formula for zinc chloride is ZnCl2.