soluble and insoluble substances

Question 1

define soluble

Answer 1

Soluble substances are those that dissolve, for example sodium chloride (table salt).

Question 2

define insoluble

Answer 2

Insoluble substances do not dissolve, for example calcium carbonate (chalk).

Question 3

when are solutions formed

Answer 3

Solutions form when the particles of the solute disperse through the solvent.

Question 4

what is a solvent

Answer 4

The solvent is the substance that can dissolve other substances, such as water.

Question 5

what is a solute

Answer 5

The solute is the substance that has been dissolved.

Question 6

what are some properties of solutions

Answer 6

Solutions have uniform properties, for example they are always transparent and allow light to pass through.
Some solutions may be coloured.

Question 7

what is dissociation

Answer 7

When an ionic solid dissolves, it breaks down into its component ions. This is called dissociation.

Question 8

how does dissociation occur

Answer 8

dissociation occurs when the solvent molecules surround the ions in the lattice and break it apart

Question 9

what does (aq) stand for and when is it used

Answer 9

When ions are dissolved in a solution, the subscript (aq), for aqueous is used.

Question 10

what does (aq) mean

Answer 10

it means that the ions are dissolved in water.