Write a balanced chemical equation, including physical states ofall reactants and products, for each reaction. Then classify the reaction as one of the general types of reactions.
1) When solid gray manganese is placed into an aqueous solution of colorless lead(II) nitrate it produces an aqueous solution of light pink manganese(II) nitrate and solid grey lead.
2) When the solid red mercury (II) sulfide is heated in oxygen gas,the products are silvery liquid mercury and sulfur dioxide, a colorless gas.