Question

An iron nail (Fe) is placed into a solution of copper(II) sulfate (CuSO4). After some time, the blue color of the copper(II) sulfate disappears and some copper-colored solid (Cu) is found on the surface of the nail. The solution now contains iron(II) sulfate (FeSO4 ), and the container feels warmer than before the reaction.

1. What do the color changes indicate?

2. List the reactants

3. List the products.

4. Explain what is meant by a balanced chemical equation.

5. How can you determine the rate of a chemical reaction?

Answer 1

1. The colors changes mean the reaction took place.

2. Fe and CuSO4

3. FeSO4 and Cu

4. This means that the electrons on both the reactants and the products have to be balance or need to be the same.

5. When you get the products meaning after the reaction takes place