PLEASE HELP ME IM GIVING 30 POINTS
Assignment: Draw up variants of options with which you can make the following changes:
In each reaction, the names of the products and the type of reaction appear.
• Hydrochloric acid → copper (II) chloride → copper (II) hydroxide → copper (II) oxide
• Fe → Fe2O3 → X → BaSO4
• S → X → Na2SO3 → CaSO3