Answer:
1)A physical change is a change to the physical—as opposed to chemical—properties of a substance.
2)In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not.
Example: freezing of water, melting of wax, boiling of water
However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. All chemical reactions are reversible although this can be difficult in practice.
Example: digestion of food, burning of coal, rusting
3)Sublimation, deposition, condensation, evaporation, freezing, and melting represent phase changes of matte
4)No because chemical change can't restored.
5) physical change because it can be restored.
6)Reactivity with other chemicals.
Toxicity.
Coordination number.
Flammability.
Enthalpy of formation
6) understanding reactivity is helpful for making jewelry because it helps to know which metals can be used for decoration
Explanation:
1)A physical change is a change to the physical—as opposed to chemical—properties of a substance.
2)In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not.
Example: freezing of water, melting of wax, boiling of water
However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. All chemical reactions are reversible although this can be difficult in practice.
Example: digestion of food, burning of coal, rusting
3)Sublimation, deposition, condensation, evaporation, freezing, and melting represent phase changes of matte
4)No because chemical change can't restored.
5) physical change because it can be restored.
6)Reactivity with other chemicals.
Toxicity.
Coordination number.
Flammability.
Enthalpy of formation
6) understanding reactivity is helpful for making jewelry because it helps to know which metals can be used for decoration
