ChemistryWiki | RecentChanges | Preferences
Showing revision 4
Name: ___________________________ Period: ____________
Lab Quiz on Physical and Chemical Change Lab including Additional Steps
Answer the following questions using your Lab notebook (specifically Physical and Chemical Change Lab and Additional Steps in Physical and Chemical Change Lab - Revised 2022-2023).
1) In Step 1 of the original lab, circle the change:
a) When you added energy to wax in test tube: Physical or Chemical
b) When you added energy to the candle (made of wax): Physical or Chemical
2)
7) In Step 3 the original Physical and Chemical Change Lab, you added some AgNO3 solution to the NaCl solution. When you added the two solutions together, answer the following:
a) Was this a CHEMICAL CHANGE or PHYSICAL CHANGE (circle one).
b) In a sentence or two explain why (use lab observation to support explanation) what you circled above ("new substance is formed" is not an observation).
2) In Step 1,