Objects in orbit appear to be weightless because they are in free fall around Earth

A. True
B. False

Can someone me with questions 12 and 13 plz.

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

What conclusion can you draw from this experiment about the components of the black ink?