What is a mixture?

• More than one substance put together, but they are not chemically bonded

• A substance that has more than one type of atoms

• A substance that has only one type of atoms

• A group of atoms that is chemically bonded together

Water + sugar is a _________. (complete the sentence)

• Liquid-liquid mixture

• liquid-solid mixture

• solid-solid mixture

Which of the following is a Liquid-liquid mixture?

• Salt and sugar

• Water and acetone

• water and salt

• water and sand

What is the separation technique used in the picture?

• Decanting

• Evaporation

• Filtration

• Crystallization

Which separation technique is used in the shown picture?

• Filtration

• Decanting

• Distillation

• Centrifugation

If you have a sample of salt and iron filings. Which of the following techniques you will use to separate them?

Hint: there is more than one technique you can use.

• Filtration

• Solvent extraction with water

• Magnet

• Distillation

Which technique you will use to separate the caffeine from the coffee powder?

• Solvent extraction

• Filtration

• Distillation

• Crystallization

What is the name of separation technique shown in the picture?

• Filtration

• Decanting

• Distillation

• Centrifugation

In which of the following mixtures we can use distillation?

• Salt and sugar

• water and acetone

• iron filings and sand

• water and oil

What is the name of separation tool in the picture?

• Distillation

• Solvent extraction

• Separatory funnel

• Conical flask