Mixtures and Solutions

Mixtures

two or more materials stirred together

How do you separate mixture?1. Hand separation2. Screening3. Filtering

Solutions

a special mixture formed when a material dissolves in water

How do you separate solution?1. Evaporation

Solubility or most soluble

The property of a substance that tells how it dissolves in a liquid.

Which is the most soluble?SaltBaking sodaCitric Acid

Saturated Solution

is when a solute dissolves in a solvent until no more will dissolve.

How can you dissolve more in a saturated solution?

HeatAdd more solvent

Saturated solutions

All saturated solutions made at the same temperature always have the same ………

Concentration.

Crystal

Regular formExamples:Salt -Citric Acid -Epsom Salt -

Snowflake -

Concentration

the amount of material dissolved in an amount of liquid.

MathematicallyWhich is more concentrated?1 in 25, 2 in 50, 3 in 100, 4 in 125

Dilute

to make a solution less concentrated

To dilute something:Add more solvent - water or the liquid

Chemical ReactionsWhen two or more materials (chemicals)are mixed together and a change occurs.

Evidence of a chemical change:•Fizzing, bubbling, or releasing gas

•Temperature change.•Forms a new substance. (precipitate)

Weight of Water

1ml of water weighs

1 gram

50ml of water weighs

50 grams

90ml of water weighs

90 grams

Venn Diagrams