C3 Mixtures LC1 Homework

2

Which substances are insoluble (do not dissolve) in water?

sugar

sand

salt

flour

4.1.1.2

1

Which process happens when a solid can be observed to 'disappear' in a liquid to make a solution?

4.1.1.2

1

A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.
What most likely happen to the mixture of sand and water?

The sand will remain on the bottom because there is more of it.

The sand will mix with the water and form a solution.

The sand will sink to the bottom because it is more dense than water.

The sand will remain at the top because it is was poured last.

4.1.1.2

7

Label the apparatus for distillation

Andre svarmuligheder:

Round Bottom Flask

Beaker

Condenser

Pure water

Bung/ Stopper

Tap Water

Thermometer

4.1.1.2

5

Please label this diagram

Andre svarmuligheder:

tripod

Heatproof mat

Evaporating basin

gauze

Bunsen Burner

4.1.1.2

1

A student wants to extract salt from a solution of saltwater. What is a possible way to extract the salt from the saltwater solution?

Use a pair of tweezers to pick out the individual crystals of salt from the water

Use a magnet to pull the salt crystals out of the solution

Use a filter that has holes large enough to allow the water through but small enough to trap the salt

Boil the saltwater solution on a hot plate to allow the water to evaporate so the salt remains on the hot plate

4.1.1.2

1

Match the separating technique with the description

Draggable emne		Korresponderende emne

4.1.1.2

C3 Mixtures LC1 Homework

Which substances are insoluble (do not dissolve) in water?

Which process happens when a solid can be observed to 'disappear' in a liquid to make a solution?

A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.What most likely happen to the mixture of sand and water?

A student wants to extract salt from a solution of saltwater. What is a possible way to extract the salt from the saltwater solution?

Match the separating technique with the description

Which substances are insoluble (do not dissolve) in water?

Which process happens when a solid can be observed to 'disappear' in a liquid to make a solution?

A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.What most likely happen to the mixture of sand and water?

A student wants to extract salt from a solution of saltwater. What is a possible way to extract the salt from the saltwater solution?

Match the separating technique with the description

A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.
What most likely happen to the mixture of sand and water?

A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.
What most likely happen to the mixture of sand and water?