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Quiz: Physical/Chemical Change Quiz begin 2 min after the bell rings – feel
free to ask questions during this time if you’ve got any!
You have 4 min to work on the quiz
T 9/23 and W 9/24
Identify the number of sig. figs. :
21.70
0.0001500
5400
1710.
Round the following number to 3 sig. figs.
7512370
7500000 (This one is tricky!)
Change the following number to sci. not, and identify the number of sig. figs.
0.0012500
8701520.0
Warm – up # 5: Sig. figs.Heads up: warm up page will be due the day of the test---have them ALL!!
Card Sort
1. Sort the cards into FIVE different reaction types.Each reaction type should have FOUR cards associated with it (one of each color)
2. For each reaction type, copy down the information from each card on notebook paper notes.
3. Come up with names for each reaction type.
Decomposition
Synthesis (Combination)
Combustion
Single Replacement
Double Replacement
Types of Chemical ReactionCompounds break down
Compounds are formed
Carbon compounds burning in oxygen, forms water and CO2
One element replaces another in a compound
Two elements switch places in two compounds
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