L4 🧠 Mixture of Matter

Which of the following is an example of a mixture

• Hydrogen peroxide

• Rust

• Air

• Table Salt

What is true of a mixture

• it can only be separated by chemical means

• it may be a solution

• it may be heterogeneous but no homogenous

• it may be homogenous but not heterogenous

An alloy is which of the following

• solid- solid solution

• heterogeneous mixture

• homogeneous mixture but not a solution

• compound

Which of the following is not a solution

• Gasoline

• Steel

• Baking soda

• Lemonade

Ink is often a mixture of several dyes. The dyes can be separated because they spread through paper at different rates. What method could be used to separate the dyes in the mixture?

• Chromatography
• Filtration
• Evaporation
• Distillation