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Question 22

Compared to an ordinary chemical reaction, a fission reaction will:

a
absorb a larger amount of energy.
b
absorb a smaller amount of energy.
c
release a larger amount of energy.
d
release a smaller amount of energy.
Question 23
Which of the following substances is most acidic?

a
bleach with a pH of 13.0
b
blood with a pH of 7.4
c
sea water with a pH of 8.0
d
rain water with a pH of 5.5

1 answer

Question 22: Compared to an ordinary chemical reaction, a fission reaction will:

c - release a larger amount of energy.

Fission reactions, which involve the splitting of atomic nuclei, typically release significantly more energy compared to ordinary chemical reactions, which usually involve the rearrangement of electrons.

Question 23: Which of the following substances is most acidic?

d - rain water with a pH of 5.5

Among the options provided, rainwater has the lowest pH (5.5), indicating it is the most acidic. The lower the pH, the more acidic the substance is.