Question

determine the charge on the cation. part 1 of 3 write the symbol and charge for the cation in pbs. part 2 of 3 write the symbol and charge for the cation in cui₂. part 3 of 3 write the symbol and charge for the cation in fe₂o₃.

Explanation:

Step1: Identify cation in PbS

In PbS, lead (Pb) is the cation. Sulfur (S) has a charge of - 2 in ionic compounds. For the compound to be neutral, the charge on Pb must balance the - 2 charge of S. So the charge on Pb is + 2.

Step2: Identify cation in CuI₂

In CuI₂, copper (Cu) is the cation. Iodine (I) has a charge of - 1 in ionic compounds. Since there are 2 iodine atoms with a total negative charge of - 2, the charge on Cu must be + 2 to balance it.

Step3: Identify cation in Fe₂O₃

In Fe₂O₃, iron (Fe) is the cation. Oxygen (O) has a charge of - 2 in ionic compounds. The total negative charge from 3 oxygen atoms is - 6. Since there are 2 iron atoms, to balance the - 6 charge, each Fe atom has a charge of + 3.

Answer:

Part 1 of 3: Pb²⁺
Part 2 of 3: Cu²⁺
Part 3 of 3: Fe³⁺