Calculate the number of moles of molecules on 7.30g of hydrogen chloride HCL​

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What is a metal 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