Approximately 4/5 of dry air consists of
A) oxygen.
B) nitrogen.
C) carbon dioxide.
D) argon.
Correct Answer:
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Q3: The decomposition of an unstable compound usually
A)
Q6: Chemical reactions that give off energy are
Q7: One mole of which of the following
Q8: The chief reason why reaction rates increase
Q9: The mass of 1 mole of oxygen,
Q12: The speed of a chemical reaction is
Q13: According to Aristotle, every flammable material consisted
Q18: If a certain reaction is endothermic, the
Q19: An oxide decomposed by heating will give
A)
Q20: An example of slow oxidation is
A) a
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