Classification of Matter

What is the energy level of gas particles?

• Low Energy

• Medium Energy

• Very High Energy

• No Energy

Which state of matter has a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma

Which state of matter has a very strong force and low energy?

• Solid

• Liquid

• Gas

• Plasma

Which of the following is a pure substance?

• Air

• Water

• Salad

• Trail mix

What distinguishes mixtures from pure substances?

• Mixtures have a fixed composition.

• Mixtures can be separated by physical means.

• Mixtures are always compounds.

• Mixtures are always elements.

Which of the following is a pure substance?

• Coffee

• Helium

• Soil

• Milk

What is the simplest pure substance?

• Compound

• Mixture

• Element

• Solution

Which of the following is an example of an element?

• Water

• Salt

• Gold

• Air

Which of the following is an example of a compound?

• Air

• NaCl

• Sand

• Iron filings

What does the chemical formula C₁₂H₂₂O₁₁ represent?

• Salt

• Sugar

• Water

• Carbon dioxide