Chemistry -changes of states of matter

Which of the following can be used to separate salt and water?

• Filtration

• Chromatography

• Simple Distillation

• Evapouration to Dryness

Descending chromatography is favoured by _________?

er

• Length of chromatography pap

• Gravitational pull

• Type of solutes being separated

The solid substance left on the filter paper is known as ___________?

• Remains

• Residue

• Crystals

• Sublimate

The substance that gets through the filter paper is called the ___________?

• Refuse

• Distillate

• Filter

• Filtrate

The biggest advantage that filtration has it that it is ____________?

• Cuts on costs

• Produces 100% pure substance

Evaporation is not involved in filtration.

• True

• False

Evaporation to dryness is very similar to which of the following experimental technique?

• Distillation

• Filtration

• Crystallisation

• Chromatography

Which of the following can help to find the purity of a water?

• Boiling point

• Colour

• Smell

• Solubility in water

Which of the following is the best way of obtaining pure water from ink?

• Chromatography

• Distillation

• Filtration

• Freezing

Sublimation is the term used to mean which change of state?

• Solid to Liquid

• Liquid to Gas

• Gas to Solid

• None of the above