Question

part 4: fill in the blanks

1. a substance that cannot be broken down into simpler substances by chemical means is called an
2. when two or more substances are combined and retain their own properties, they form a
3. a mixture has the same composition throughout.
4. is a process by which a liquid can be separated from a solid by evaporation and condensation.
5. nonmetals are usually in appearance and poor conductors of heat and electricity.

Explanation:

1. An element is a substance that cannot be broken down into simpler substances by chemical means.
2. A mixture where substances combine and retain their own properties is a heterogeneous mixture.
3. A mixture with the same composition throughout is a homogeneous mixture.
4. Distillation is the process by which a liquid can be separated from a solid by evaporation and condensation.
5. Non - metals are usually dull in appearance and poor conductors of heat and electricity.

Answer:

1. Element
2. Heterogeneous mixture
3. Homogeneous mixture
4. Distillation
5. Dull