Question

question
when a pure substance undergoes a change from a solid state to a gaseous state, this is an example of a
select the correct answer below:
physical change
chemical change
electrical change
none of the above

Explanation:

A physical change alters the form or state of a substance without changing its chemical composition. When a substance changes from solid to gas (sublimation), no new substances are formed chemically. A chemical change involves the formation of new substances with different chemical properties. Electrical change is not relevant here.

Answer:

physical change