Dalton’s atomic theory stated that every element was made of atoms that could not be subdivided, atoms of the same element are alike, and

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

Can someone me with 3 and 4 plz. this is for masteries test.

Why is retrograde motion an apparent motion