Topic 1 Particles & Mixtures

Features of a SOLID

Has strong forces of attraction, They are close togther in a fixed shape and particles can only vibrate in there fixed position

Features of a LIQUIDS

Has weak forces of attraction, they stick togther closely and move around randomly

Features of a GAS

Has very weak forces of attraction, Particles are far apart and gases dont keep a defined shape or volume and they are constantly moving around randomly

Name all the changes of state

Melting, Evaporating, Condensing, Freezing and Sublimation

Diffusion

It is the movement of particles through liquid and gas or from an area of high concentration to an area of low concentration down a slightly permeable concentration gradient

Potassium Magnate and water

Put potassium magnate in water and wach the purple color diffuse through.

If you ass more water the partials spread out even further apart making it less purple. This is called dilution

Bromine Gas air

Bromine gases diffuses through the air causing the container to turn brown.

The random motion of the particles means that the bromine will eventually fully diffuse through the air

Ammonia and hydrogen chloride

The ammonia gas diffuses closer to the hydrogen chloride creating a ring of ammonium chloride.

It is closer to the hydrogen chloride because the particles of ammonia are smaller and lighter so the diffuse through the air more quickly.

What is a solution

Mixtures of solute and solvent that CANNOT be separated out

What is a solute

The substance being dissolved

What is a Solvent

The liquid where the solute is being dissolved into

What is a Saturated solution

Solution were the max about of solute has been dissolved. So no more solute will be dissolved in the solution when added.