These are the problems I couldn't find answers for. So pleas help me if you can. Thank you!

1) Which of these statements is true?

a) Molecules form atoms that in turn determine chemical properties of a substance.
b) Molecules are the smallest subdivision of matter that still retains chemical properties
c) Chemical elements are made up of about 100 distinct molecules.
d) A molecule is the smallest particle that exists.
e) None of these statements is true.

2) If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is

a)1 gram.
b)999 grams. I think this is the answer.
c)1 kilogram.
d)1.1 kilogram

3) To change mercury into gold, a pair of protons must be

a) removed from the mercury nucleus.
b) added to the mercury nucleus.
C) both of these.
d) neither of these

1) I think a is true, and molecules are made of atoms, which are their-fore smaller than them.

Umm, I think q3 is d (neither of these) because mercury has an atomic mass of 80, while gold has an atomic mass of 79.

If my thinking is right, you need to knock 1 proton off the mercury.

Note: I am no expert, but I enjoy this sort of stuff, so if there is anything to back me up, go with it!

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Originally Posted by idle_09

These are the problems i couldn't find answers for. So pleas help me if you can. Thank you!

1) Which of these statements is true?

a) Molecules form atoms that in turn determine chemical properties of a substance.
b) Molecules are the smallest subdivision of matter that still retains chemical properties
c) Chemical elements are made up of about 100 distinct molecules.
d) A molecule is the smallest particle that exists.
e) None of these statements is true.

2) If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is

a)1 gram.
b)999 grams. I think this is the answer.
c)1 kilogram.
d)1.1 kilogram

3) To change mercury into gold, a pair of protons must be

a) removed from the mercury nucleus.
b) added to the mercury nucleus.
C) both of these.
d) neither of these

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`1) is definitely e)
a) Molecules form atoms that in turn determine chemical properties of a substance.
b) Molecules are the smallest subdivision of matter that still retains chemical properties
c) Chemical elements are made up of about 100 distinct molecules.
d) A molecule is the smallest particle that exists.
e) None of these statements is true.

Atoms form molecules
Atoms are the smallest division
There are about 100 distinct elements
There are sub-atomic particles

999g will remain

And you need to d) none of the above, remove one proton