Chemistry unit test, please help! If a reaction is done in the lab, and 26.4 g of hydrogen, H2, is produced from 100.0 g of methane, CH4, reacting with excess water as shown, what is the percentage yield?
CH4 (g) + H2O (g) → CO (g) + 3 H2 (g)

Select one:
a. 100%
b. 57.1%
c. 23.4%
d. 69.9%

increased stability in the completion of fluorine's outer shell.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl