Lab: Physical and Chemical Changes

Question 1

Use the drop-down menus to label each of the following changes P for physical change and C for chemical change. The substance changes to a new substance.

Revolt · Accepted Answer

C; The substance changes to a new substance.: C; The original substance can be recovered.: P; The color changes.: C; Gas is produced and given off.: C; The substance changes size, shape, or volume.: P

Question 2

The original substance can be recovered.

Revolt · Accepted Answer

P

Question 3

The color changes.

Revolt · Accepted Answer

C

Question 4

Gas is produced and given off.

Revolt · Accepted Answer

C

Question 5

The substance changes size, shape, or volume.

Revolt · Accepted Answer

P

Question 6

Select each process that shows a physical change. Select all that apply.

Revolt · Accepted Answer

Chopping Wood; Heating Water

Question 7

Which statements below are an appropriate hypothesis in response to this question? Check all that apply.

Revolt · Accepted Answer

If a substance undergoes a physical change, then it will retain most of its original properties because no new substance is formed.; If a substance undergoes a chemical change, then it will not retain its original properties because a new substance is formed.

Question 8

Check all correct elements below that you included in your lab question.

Revolt · Accepted Answer

Format: How can you distinguish A from B?; Comparison: physical changes vs. chemical changes

Lab: Physical and Chemical Changes Answers

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