precipitate reactions

Answer 1

When a solid dissolves
(such as NaCl in the diagram),
the individual atoms break
away from the lattice and
are free in the water.

In this case the water is the
solvent, the salt is the solute and the mixture of the water and dissolved NaCl is called a solution.

Answer 2

In real life, dissolved substances/solutions are clear as the
individual atoms are tiny and spread evenly throughout the
solution.

Question 3

precipitate

Answer 3

When 2 clear solutions are mixed, a solid sometimes forms. This solid is known as a precipitate.

Question 4

insoluble vs soluble

Answer 4

If a substance dissolves it is soluble.
If a substance doesn’t dissolve it is insoluble

Question 5

solubility

Answer 5

Solubility is a measure of how much of the solute can be
dissolved in a solvent.

Question 6

solubility laws for ionic compounds

Answer 6

All nitrates are soluble

All sodium, potassium and ammonium salts are soluble

All chlorides are soluble except those of silver, lead and mercury

All sulphates are soluble except those of calcium, barium and lead

All hydroxides and carbonates are insoluble except those of sodium, potassium and ammonium

Question 7

SEE SLIDES 11-17 FOR PRACTICE