Science
9th - 12th Grade
NGSS covered
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this equation endo- or exo-thermic?
PCl3 (s) + Cl2 (g) --> PCl5 (s) + energy
endothermic
exothermic
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this equation endo- or exo-thermic?
2KNO3 (s) + energy --> 2KNO2 (s) + O2
endothermic
exothermic
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Based upon the graph above, what type of reaction is this?
Endothermic
Exothermic
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following represents an exothermic reaction?
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the table of average bond energies below the image, the ΔH for the reaction in kJ is.....
+ 160 kJ
-63 kJ
- 160 kJ
-217 kJ
Tags
NGSS.HS-PS1-4
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Tags
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the reaction & table above, determine the change in energy and whether or not the reaction is endothermic or exothermic:
-2054 kJ endothermic
2045 kJ endothermic
-2045 kJ exothermic
2045 kJ exothermic
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
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