They are nitrogen, oxygen, hydrogen
Answer:
1) Length - Meter
2) Mass - Pound
3) Time - Minute
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We are given with
136 g P4
excess oxygen
The complete combustion reaction is
P4 + 5O2 => 2P2O5
Converting the amount of P4 to moles
136/123.9 = 1.098 moles
Using stoichiometry
moles P2O5 = 1.098 x 2 = 2.195 moles P2O5
