EVERYDAY SCIENCE

Detailed explanation-1: -Homogeneous mixtures (solutions) can be separated into their component substances by physical processes that rely on differences in some physical property, such as differences in their boiling points. Two of these separation methods are distillation and crystallization.

Detailed explanation-2: -Answer and Explanation: The separation of mixtures is a physical change. In separating mixtures, no changes in the chemical composition of the components of the mixture occur.

Detailed explanation-3: -Heterogenous mixtures can be separated into their respective constituents by simple physical methods.

Detailed explanation-4: -Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds. Physical changes occur when objects or substances undergo a change that does not change their chemical composition.

Detailed explanation-5: -Which is which? A mixture is created when two or more different substances are physically combined and can be separated back into its original substances. A chemical reaction occurs when two or more substances are combined to form a new substance and cannot be separated back into its original substances.