Water Purification Chemistry Word Problem?

Water Purification in most cities involves addition of calcium hydroxide to the water, which results in the precipitation of undesirable metal ions, such as lead (II) ion, manganese (II) ion, and chromium (III) ion, as metal hydroxides. Write balanced net ionic equations for the formation of two of the precipitates that form from the above metal ions during this water treatment process using calcium hydroxide solution as the precipitating agent. Treat calcium hydroxide as a soluble substance.