Grade 12 Chemistry Quiz

What is the definition of matter?

• Anything that has mass and volume

• Anything that has volume and energy

• Anything that has energy

• Anything that has mass, volume, and energy

What is a pure substance?

• A substance with multiple phases

• A substance with no mass

• A substance with uniform intensive properties

• A substance with varying intensive properties

Which of the following is an example of a pure substance?

• Saltwater

• Water

• Zinc

• Air

What is a homogeneous mixture also known as?

• Solution

• Gas mixture

• Heterogeneous mixture

• Solid substance

What is the phase of a portion of matter that is physically distinguishable and has uniform intensive properties?

• Phase

• Filtration

• Solution

• Mixture

Which method of separation is used to separate solid particles from liquid and gaseous mixtures?

• Distillation

• Estrazione

• Centrifugation

• Cromatografia

What is the purpose of extraction in the separation of mixtures?

• To separate components based on volatility

• To separate components based on density

• To separate components based on solubility

• To separate components based on phase

What is the technique that uses the different boiling points of components in a liquid mixture to separate them?

• Filtration

• Centrifugation

• Distillation

• Estrazione

Which of the following is an example of a heterogeneous mixture?

• Air and gas

• Water and oil

• Steel and bronze

• Water and salt

What is the solvent in a solution?

• The most abundant substance

• The least abundant substance

• The substance with the highest density

• The substance with the lowest density