The first step of crystal formation is nucleation is this true or false?

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

How many moles of al3+ ions are in 1.25 moles of al2o3