7C Pure & Impure Solutions

Instant coffee is made by dissolving a powder in hot water. Instant coffee is a ___________________ .

• pure substance

• mixture

The substance being dissolved is called the ________

• solvent

• solid

• solute

• solvate

When no more solute dissolves the solution is _________

• supersaturated

• unsaturated

• saturated

• supercalifragilisticexpialidocious

Which of the following is a mixture?

• air

• ice

• hydrochloric acid

• mercury

4. A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• mixture

• pure substance

• compound

• element

9. Blood is a fluid found in the bodies of humans and other animals. It can be physically separated into plasma, red blood cells and white blood cells. Blood is a ___________________

• pure substance

• mixture

Instant coffee is made by dissolving a powder in hot water. Instant coffee is a ___________________ .

• pure substance

• mixture

Cake batter is a substance that may contain flour, eggs and sugars mixed by hand or with an electric mixer. Cake batter is a ___________________ .

• pure substance

• mixture

The diagram shows the apparatus for separating soil and water. What are the labelled parts?

• A = distillate, B = filtrate
• A = filtrate, B = residue
• A = residue, B = filtrate
• A = residue, B = distillate

To separate a mixture of salt and water what separation method is used?

• Filtration

• Distillation

• Chromatography

• Evaporation to dryness