Question

1. which of the following statements correctly explains why physical properties of a substance can be used to separate mixtures? (1 point) when substances are mixed together, they retain their physical properties. mixtures contain different substances with different properties and chemists can separate one item from the mixture by forcing it to undergo a chemical change. when substances are mixed together, you can see each individual component. when substances are mixed together, the mixture assumes the physical properties of each individual substance.

Explanation:

• In a mixture, substances retain their physical properties. This allows separation based on differences in these properties (e.g., filtration for different particle sizes, distillation for different boiling points).
• The second option is incorrect as separation using physical properties does not involve forcing a chemical change.
• The third option is not a general reason (some mixtures are homogeneous and components are not visible).
• The fourth option is wrong as the mixture doesn't assume each individual's physical properties in that way.

Answer:

When substances are mixed together, they retain their physical properties.