Question

give the meaning of
1) physical change
2) heterogeneous mixture
3) concentration of a solution ​

Answer 1

Answer:

physical change a change in which the physical properties are changed and no new substance is formed

heterogeneous mixture a mixture in which the components can be seen uniformly

Answer 2

Explanation:

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. 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