4by7/9 : 1by1/27 solve it answer is 129:28
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Answer:
2 ЕО +02----- 2CO2
2х22.4L
at N+P
2x22.4 of CO required 32g oxygen
44.8L of CO required 32g oxygen
84L of CO required 32/44.8×84g
=60g
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