Solutions and Mixtures Flashcards
(32 cards)
What can be plotted on a solubility graph?
The solubility of a substance
A solubility curve shows the relationship between what two things?
Temperature and Solubility
Solubility changes as …. changes
Temperature
When do you stop adding solute in the solubility experiment?
Until no more dissolves and the solution is fully saturated
What is filtration?
Used to separate insoluble solids from liquids
What is a filter paper used for?
To trap solid particles while allowing liquid to pass through
What is evaporation?
Evaporation separates a soluble solid from a liquid by heating the mixture
What happens when the liquid evaporates?
It leaves a solid residue behind
What is distillation?
Distillation separates mixtures based on differences in boiling points
What is simple distillation used for?
To separate a liquid from a solution
What is fractional distillation used for
To separate a mixture of liquids with different boiling points
What is chromatography?
It separates substances based on their movement through a medium
What is centrifugation?
It separates substances based on their density using rapid spinning
Decantation does what?
Separates liquid from solid by pouring off the liquid
What does sieving do?
It separates particles based on size using a mesh
What is chemical change?
It is when atoms rearrange to form new substances called products
Why does chemical change result in colour change?
Because of new products forming
Chemical changes are usually…
Irreversible
What is physical change?
It involves a change in state without forming new substances
Physical changes are usually…
Reversible
There is no…in physical change
Colour change
What is the term for the original chemicals in a chemical change?
Reactants
New products from chemical reactions may differ in… from reactants
State
Chemical reactions involve…
Energy change
