All are considered pure substances, except for

• Gold (Au)

• Table Salt (NaCl)

• Coke-A-Cola

• Water (H₂O)

• Sugar (C₆H₁₂O₆)

A solution is ...

• Heterogeneous mixture

• Homogeneous mixture

• Made of one substance

• Made of two or more substance

• Contains a solvent and one more solutes

Water and Oil ...

• Are soluble with each other because one is polar and the other is non-polar covalent molecule

• Are insoluble with each other because one is polar and the other is non-polar covalent molecule

• Are soluble with each other because they are both polar covalent molecules

• Are insoluble with each other because they both non-polar covalent molecules

Types of solutions include ...

• Air

• Steel

• Ice Tea

• Ice

A solution is considered dilute if ....

• If the solute concentration is the same as the solvent concentration

• It has a high concentration of dissolved solute compared to the solvent

• It has a low concentration of dissolved solute compared to the solvent

• If the solute does not dissolve in the solvent

To increase the rate in which a sugar cube dissolves in 100 millilitres (ml) of water, you should ....

• Add more sugar

• Add more water

• Boil the water

• Stir the mixture

• Crush the sugar cube before you add it to the water

What is the average temperature and pressure in this classroom?

• 25 degrees Celsius and 1 atmosphere

• 40 degrees Celsius and 100 atmospheres

• 0 degrees Celsius and 1 atmosphere

• 98 degrees Celsius and 0 atmospheres

At standard temperature, a calcium chloride solution with a concentration of 90 grams per 100 grams water is considered ...

• Unsaturated

• Saturated

• Supersaturated

100 grams of water is equal to ....

• 100 millilitres of water

• 0.1 liters of water

• 1000 liters of water

• 1 liter of water

How can I make a saturated solution containing 35 grams NaCl in 100 grams or water, into an unsaturated solution?

• Add more NaCl

• Increase the temperature of the solution

• Decrease the temperature of the solution

• Stir the solution

• Add more water