What is the chemical formula for potassium permanganate?

What is the mass of 0.46 mil of mgcl2

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

In a copper wire, a temperature increase is the result of which of the following