When liquid gold becomes a solid, its particles get closer together. which best describes what happened to the gold?

a. the conservation of magnetism
b. the change in solubility in a physical change
c. the change in melting point in a physical change
d. the rearrangement of particles in a physical change

option D. The rearrangement of particles in a physical change.

Explanation:

1) The change occured when a liquid substance becomes a solid is named freezing.

Yes, such as when liquid water becomes ice.

2) Such change is a change of phase or physical state of the matter. As such it is just a physical change: the chemical composition of the substance and the chemical bonds do not change.

3) At atomic or molecular level, what happens with the particles during freezing is that they come closer and are arranged in fixed positons one respect to the each other, so the particles do not slide over others. By occupying a fixed position, the substance acquires a definite shape and volume, and is not able to flow.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic