The human body contains trillions of cells.

What is a property of a double replacement reaction

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

What produces wave a)sound b) heats c)transfer of energy d)vibrations