Solutions

Speed up salt dissolving

• Stir the water vigorously

• Heat water to higher temperature

• Add more salt to the water

• Use cold water instead

Mixture with even distribution

• Suspension

• Colloid

• Solution

• Emulsion

Example of a solvent

• Oil

• Ethanol

• Water

• Glycerin

Characteristic of a solvent

• Dissolves other substances

• Increases temperature

• Is always a liquid

• Has a fixed volume

Role of a solvent

• Dissolves the solute

• Increases the temperature

• Reduces the pressure

• Changes the color of the solute

Rate of dissolving faster when stirred?

• True

• False

• Only in hot water

• Only with sugar

Universal solvent

• Water

• Alcohol

• Oil

• Acetone

Type of mixture:

• Homogeneous

• Heterogeneous

• Colloidal

• Suspension

Stirring increases rate of dissolution

• True

• False

• Only in solids

• Only in liquids

Type of mixture shown in the picture?

• Heterogeneous

• Homogeneous

• Colloidal

• Suspension