Yr 11 Chapter 2 and 3

A compound is an example of a/an:

• Pure substance
• Homogeneous mixture
• Heterogeneous mixture
• Colloid

A solution is an example of a/an:

• Pure substance
• Homogeneous mixture
• Heterogeneous mixture
• Colloid

When a solvent contains the maximum solute that it can hold, the resulting solution is referred to as:

• Unsaturated
• Saturated 
• Supersaturated
• Concentrated

A mixture is:

• Matter that contains two or more different substances
• Matter that contains two or more different substances that can be seen
• Matter that contains two or more different substances that cannot be seen
• Any combination of solids, liquids and gasses

Which of the following are examples of physical properties?

• Decomposition by heat
• Effect of light
• Reaction with water
• Electrical conductivity

Which of the following is not an example of a physical property? 

• Melting point
• Solubility
• Phase or state
• Effect of light

Which of the following is not an indication that chemical change has occurred?

• Precipitate is formed
• A colour change
• There is a significant change in temperature
• Changing from a solid to a gas

Fractional distillation is most commonly used to separate:

• A mixture of liquids
• Solids dissolved in liquids
• Gasses dissolved in liquids
• Solids dissolved in solids

The following separation technique separates on the basis of:

• Boiling point
• Particle size
• Magnetic properties of sample
• Electrical properties of sample

Fractional distillation is preferable to normal distillation when:

• Boiling points are similar
• Melting points are similar
• Colour of solution is similar
• For separation of gas from oil