Why is it difficult to classify dissolving as simply a physical or chemical change?

Answer 1

1. Which property of matter is an extensive, rather than an intensive, property of matter?

B) Mass

2. Why is it difficult to classify dissolving as simply a physical or chemical change?

A) Some substances keep the same molecular structure when they break down, and others do not.

3. While camping, you make a snack over a campfire. You roast a marshmallow over the campfire until it is browned and put it between some chocolate and graham crackers. When you take a bite, you notice that the chocolate and marshmallow have melted slightly. Which statement correctly identifies a part of this process as a physical or a chemical change?

A) The toasting of the marshmallow is a chemical change.

4. Which term best describes a milkshake that contains pieces of chocolate cookies?

D) Heterogeneous mixture

5. Which list only includes terms that describe water?

A) compound, molecule, pure substance

B
A
A
D
A

Answer 2

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