Which of the following is a common characteristic of all chemical reactions?
A.
They all involve a change in color.
B.
They all produce a gas as a product
C.
.They involve the breaking and forming of chemical bonds
D.
They can be reversed by simply adding more reactants.
Exam No：AP Chemistry Problem Set 6 Year：2024 Question No：APChemistry2024AP0449
Answer:
C
Knowledge points:
4.1 Introduction for Reactions
Solution:
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