joshuabm42407
08.04.2020 •
Chemistry
Use the equation below to answer the following two questions.
2C2H6 + 7O2 ---> 4CO2 + 6H2O
8. How many moles H2O are produced when 94.5 moles C2H6 decomposes completely?
a. 185.3 moles
b. 267.5 moles
c. 31.5 moles
d. 283.5 moles
9. How many grams C2H6 are needed to completely react with 42 grams O2?
a. 11.1 grams
b. 137.55 grams
c. 0.37 grams
d. 142.08 grams
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Ответ:
they are the building blocks of matter