Bond Enthalpies
Authored by Lisa Thompson
Science
12th Grade
NGSS covered
Used 2+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Does breaking bonds require energy, release energy, or not involve energy at all?
requires energy to break
releases energy when broken
No energy involved
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which statement is FALSE for an endothermic reaction?
Products higher in energy and less stable
Reactants lower in energy and more stable
Products have stronger bonds than reactants
Reactants have stronger bonds than products
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bond making and bond breaking. Which of following is TRUE?
During bond breaking, heat is absorbed
During bond making, heat is absorbed
During bond breaking, heat is released
None of the above
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
1 min • 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
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 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
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
How much energy is required to break all of the bonds in the first molecule depicted in the reaction above? (you must include the proper sign for credit)
Tags
NGSS.HS-PS1-4
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