Identify the Energy Changes That Occur in a Chemical Reaction

Quiz
•
Chemistry
•
10th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Water can be used to produce hydrogen gas.
2H2O → 2H2 + O2
Which one of the following that describes bond breaking in the reactant?
endothermic,
heat absorbed
endothermic,
heat released
endothermic,
heat released
exothermic,
heat released
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The energy level diagram for the reaction between P and Q to form R and S is shown.
Which row describes the energy changes involved and the type of reaction?
more energy is given out when the bonds in the products
are formed than is needed to break the bonds in the reactants
Type Reaction: endothermic
more energy is given out when the bonds in the products
are formed than is needed to break the bonds in the reactants
Type Reaction: exothermic
more energy is needed to break the bonds in the reactants
than is given out when the bonds in the products are formed.
Type Reaction: endothermic
more energy is needed to break the bonds in the reactants
than is given out when the bonds in the products are formed.
Type of reaction: exothermic
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The equation for the reaction is shown.
What is the energy change for the reaction?
–1420 kJ / mol
–120 kJ / mol
+120 kJ / mol
+1420 kJ / mol
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The overall energy change for this reaction is –184 kJ / mol.
What is the energy of the Cl–Cl bond?
–240 kJ / mol
–190 kJ / mol
+190 kJ / mol
+240 kJ / mol
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The energy change for this reaction is –95 kJ / mol.
What is the bond energy of the N–N bond?
158 kJ / mol
315 kJ / mol
348 kJ / mol
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the energy given out during the reaction?
–3226 kJ / mol
–884 kJ / mol
–486 kJ / mol
–442 kJ / mol
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which statement about the reaction is not correct?
Energy is given out during the reaction.
The products are at a lower energy level than the reactants.
The reaction is endothermic.
The reaction is exothermic.
Tags
NGSS.HS-PS1-4
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