Lab: Physical and Chemical Changes

Question 1

To do this, you will use these observations to compare the of the substances

Revolt · Accepted Answer

A: initial appearance

Question 2

Check all that apply.

Revolt · Accepted Answer

B: Wear chemical resistant gloves.

Question 3

Check all that apply.

Revolt · Accepted Answer

A: Use tongs to remove hot items.; C: Turn off after use.

Question 4

to the of the substances.

Revolt · Accepted Answer

A: final appearance

Question 5

According to the lab guide, which changes below will you look for in order to test the hypothesis? Check all that apply.

Revolt · Accepted Answer

A: changes in shape or size; B: color changes; C: whether changes are easily reversible; D: temperature changes; E: formation of precipitates or gases; F: changes of state (gas, liquid, or solid)

Question 6

Check all that apply.

Revolt · Accepted Answer

A: Clear the lab table of paper.; B: Tie back long hair.; C: Turn off after use.

Lab: Physical and Chemical Changes Answers

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