A reaction represented by an energy diagram in which ΔH is positive is ___.
BJU Chemistry Chapter 16 Review

Quiz
•
Science
•
11th Grade
•
Easy
Erin Hogrefe
Used 1+ times
FREE Resource
29 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
exothermic
endothermic
activation energy
the activated complex
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The transitional structure between reactants and products needed to jump start a reaction is called ___.
a catalyst
the reaction rate
activation energy
the activated complex
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The peak in an energy diagram represents __________.
a catalyst
an inhibitor
the activation energy
the products
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following factors does not significantly affect reaction rate?
concentration
temperature
pressure
surface area
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a substance is broken up into more pieces and exposes more surface area, the reaction rate will ___.
progress faster
progress slower
remain constant
not be affected
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a solid material is capable of adsorbing molecules of gases or liquids onto its surfaces, then is it a(n) ___ catalyst.
organic
heterogeneous
complex
elementary
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process of molecules of one substance collecting on the surface of another is called ___.
adhesion
absorption
cohesion
adsorption
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