What factors determine the amount of chemical energy an object has?
(write in ur own words)

What is the percent by mass of oxygen in fe2o3

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 is the percentage of hydrogen in c2h4