Question

1. Reacting Mg with HCI Solution (1) appearance of Mg: i small metal sheet ribbon (2) appearance of HCl solution: clear liquid (3) evidence that a chemical reaction occurred The my ribbon has bubbles appear around it and the liquid becomes a milkly color (4) complete ionic equation: (5) net ionic equation: (6) general reaction type: II. Reacting Pb(NO3)2 Solution with KI Solution (7) appearance of the Pb(NO), solution: OH Dedi to TED (8) appearance of the Kl solution: (9) appearance of the reaction mixture: (10) complete ionic equation: е осторе

Answer 1

Reaction of Mg with HCl solution

1. Appearance of Mg: silvery-white metal in the form of ribbon.

2. Appearance of HCl: clear, slightly viscous liquid.

3. Evidence for chemical reaction:

a. Mg will dissolve in the solution, so the solution looks opaque

b. Bubbles of hydrogen gas appears

c. Heat is given off and the container will warm up, since it is an exothermic reaction.

4. Complete ionic equation:

Mg + 2 H⁺ + 2 Cl^-$\rightarrow$ Mg²⁺ + 2 Cl^- + H₂

5. Net ionic equation: Mg + 2 H⁺$\rightarrow$ Mg²⁺ + H₂

(Complete ionic equation contains all the ions whereas net ionic equation contains ions which undergo changes).

6. Reaction type: Single displacement reaction

(Since Mg has displaced H from HCl.)