Which of the following is true about pure substances?
A.
A pure substance has the same chemical properties throughout.
B.
All pure substances are unable to be separated by any means.
C.
A pure substance can only be made up of one kind of atom.
D.
A pure substance can always be separated by physical means.

ill try to . no promises tho.

explanation:

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

i wish i could but this one is weird give me abc and i can solve it.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )