Chemical vs. Physical Changes WB Quiz

What is an example of a chemical change being changed back into its original form?

Select ALL of the following that are examples of chemical changes.  (4 choices)

Why are most chemical changes considered to be irreversible?

Select ALL of the following that are indicators that a chemical change has occurred.  (3 choices)

What’s the difference between reversible and irreversible physical changes?

Which of the following is an example of an irreversible physical change?

What type of change is it when salt dissolves into water?

Select ALL of the following that are physical changes.  (4 choices)

Which investigation would provide evidence of a physical change?

Which investigation would provide evidence of a chemical change?

A student is investigating chemical changes by using different materials.

Which investigation would provide evidence of a chemical change and why?