Can somebody please help me with these and if you guys could also do explanation that would also be very helpful.

What does x represent in the formula for the compound xcl4?

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

Is a chemical message sent by another individual.