Answer:
I believe Si12H26+02 is the coefficient I might be wrong, Sorry if I am.
Answer:
it's means two plural phenomenon and object or aspect known for through the sentence rather than by dot or intuition a temporal or spout temporal object of sensory experience as discussion from a nominal
Which of these measurements is expressed as three significant figures?
C. 4.20 g
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force. Atomic hydrogen constitutes about 75% of the baryonic mass of the universe.