4Fe + 3O2 + xH2O → 2Fe2O3 • xH2O

The formation of rust (equation above) is an example of both combustion and

After cloud droplets form, what must happen to them for precipitation to occur?

What are the first three quantum numbers for the electrons located in subshell 2s?

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