Why do all of my friends have to be soo pretty :D
im the only ugly one lol

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?