Solutions

Drinking coffee is an example of a ...

• solute.

• soluble.

• solvent.

• solution.

The powder used to make the coffee is the...

• solute.

• soluble.

• solvent.

• solution.

The water used to make the coffee is the...

• solute.

• soluble.

• solvent.

• solution.

The coffee is powder is...

• solute.

• soluble.

• solvent.

• solution.

We have to grind the coffee beans into powder because coffee beans are............. in water.

• insoluble.

• soluble.

• solvent.

• solution.

The solubility of coffee powder...

• increases if we raise the temperature of water.

• decreases if we raise the temperature of water.

• stays the same if we raise the temperature of water.

• does not change if we raise the temperature of water.

The solubility of coffee powder...

• decreases if we stir the solution.

• increases if we stir the solution.

• stays the same if we stir the solution.

• does not change if we we stir the solution.

The solubility of coffee powder is highest when...

• we use finely ground beans.

• we use medium ground beans.

• we do not grind the beans.

• we hope for the best.

The solubility of coffee powder is reduced when we...

• stir many times.

• make the pieces of powder smaller.

• heat up the water.

• replace water with milk.

Milk reduces solubility compared to water because...

• it has fewer particles, so it makes the formation of a solution easier.

• it has fewer particles, so it makes the formation of a solution more difficult.

• it has more particles, so it makes the formation of a solution more difficult.

• it has more particles, so it makes the formation of a solution easier.