All of the following are examples of solutions except
saltwater
bronze
air
water

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion