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1 According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another?


A The volume and the shape stay the same.

B The volume increases to fill the new container, but the shape stays the same.

C The volume stays the same, but the shape changes to fit the new container.

D The volume and the shape change to fill the new container.


2 Which of these correctly defines the pH of a solution?

A the negative log of the hydronium ion concentration

B the log of the hydronium ion concentration

C the negative log of the hydroxide ion concentration

D the log of the hydroxide ion concentration

Verified Answer :

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1) C
2) A
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Answer 1 : The correct option is C.

Explanation :

The property of liquid is, they have fixed volume but do not have fixed shape. when a liquid is transferred from one container to another then the volume remains the same, but the shape changes according to the shape of the container.

Answer 2 : The correct option is A.

Explanation :

pH : It is defined as the negative logarithm of the hydronium ion concentration.

The expression of pH is,

\(pH=-log[H_3O^+]\)

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