Chemical and Nuclear Energy
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•48 Qs
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Chemical and Nuclear Energy
Quiz
•
Physics
•
9th - 12th Grade
•
Hard
+2
Standards-aligned
Ian Albers
Used 7+ times
FREE Resource
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48 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statements about exothermic reactions are correct?
I. They have negative ΔH values II. The products have a higher amount of energy released than the reactants had of energy taken III. The products are more energetically stable than the reactants
I and II only
I and III only
II and III only
I, II, and III
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the solids Ba(OH)2 and NH4SCN are mixed, a solution is produced and the temperature drops. Which statement about the energetics of this reaction is correct?
The reaction is endothermic and ΔH is negative
The reaction is endothermic and ΔH is positive
The reaction is exothermic and ΔH is negative
The reaction is exothermic and ΔH is positive
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the table of average bond energies below the image, the ΔH for the reaction in kJ is.....
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this equation endo- or exo-thermic?
PCl3 (s) + Cl2 (g) --> PCl5 (s) + energy
endothermic
exothermic
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this equation endo- or exo-thermic?
2KNO3 (s) + energy --> 2KNO2 (s) + O2
endothermic
exothermic
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How can we figure out if an overall reaction is endo- or exo-thermic? It is the difference between _______ and __________.
hot and cold temperatures
energy to break and energy to form bonds.
time to form a bond versus time to break a bond
Tags
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
If a chemical reaction is EXOTHERMIC, the temperature in the system would....
Stay the same
Increase
Decrease
Tags
NGSS.HS-PS1-4
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