Would the Evaporation of Water from a Mixture of Salt

question 47

Multiple Choice

Would the evaporation of water from a mixture of salt water be considered a chemical change?

• A)Yes, since the water is separating chemically from the salt.
• B)Perhaps.It would depend if the salt changed color once all the water was gone.
• C)No, since the water is just changing phases, this is simply a physical change.
• D)Yes, since they would each have different properties once they were separated.

Distinguish between independent and dependent variables in experimental studies.

Recognize the control mechanisms used in experiments to ensure validity.

Learn the experimental method as a tool to explore cause-and-effect relationships between variables.

Understand the concept of internal colonialism and its forms in Canada.

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