if a boy is playing with his friends and then tells his friends to play with me and then he randomly throws a ball at me and play with me does that mean he likes me? pl help me especially the boys answer this you should know this.

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

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol