Reactions of aqueos ions

The reaction of [M(H2O)6 ]2+ [M(H2O)6 ]3+ and what colours does M form depending on which metal it is (M is just the substitute for the metal here)

Why is the acidity of [M(H2O)6 ]3+ greater than that of [M(H2O)6 ]2+

What coloured ions do M(OH)2 (H2O)4 (s) and M(OH)3 (H2O)3 (s) make (M is metal substitute)

2+ ion colour summary

3+ Ion summary

WHat are the equations for M(OH)2 (H2O)4 (s) and M(OH)3 (H2O)3

When Al reacts with excess NaOH it becomes what and acts like…? What is the equation for this also?

Reaction of Cu with excess NH3

6 marker