Question

Students are each given a 20 gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder. Which statement correctly describes these broken pieces of the sample?

The pieces of fine powder are individual atoms
The larger pieces are still compounds and the smaller pieces are elements.
Each piece contains the same number of atoms.
Each piece contains the same proportion of different elements.

Answer 1

It cant be choice B because that would be a chemical change, breaking it apart is only a physical change.

This is weird one but I think the closest thing is C, but even that one I'm not sure because the g/mol ratio would be different.

Answer 2

You might be right idk

Answer 3

lol this is actually kind of a silly question cause none of the options make any sense to me as @redbeardd said the closest it can get is to C but even that doesn't exactly fit the bill because even if the the atomic arrangement may be lattice, there is not certainty that the number of atoms in each pieces of that material is gonna be equal

Answer 4

*no certainty

Answer 5

Politely disagree with all of the above comments. Each piece cannot contain the same number of atoms, as they are the same compound but different sizes. Additionally, the smaller pieces are not elements, they're still the original compound. It stands to reason that the smaller pieces have the same proportion of elements because they're the same compound.