Question

Alege coeficientii in urmatoarele ecuatii chimice:
a) CH4+O2->CO2+H2O+Q (CH4 are 4 mol)
b) C2H6+O2->CO2+H2O+Q (C2H6 are 4 mol)
c) KClO3->KCl+O2(sageata de gaz) (KClO3 ARE 5 MOL)
d) P+O2->P2O5 (P are 3 mol)
e) SO2+O2->SO3 (SO3 are 3 mol)
f) H2O2->H2O+O2 (H2O2 are 5 mol)

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Answer 1

a) CH4+2O2->CO2+2H2O+Q 
b) C2H6+7/2O2->2CO2+3H2O+Q 
c) KClO3->KCl+3/2O2
d) 2P+5/2O2->P2O5 
e) SO2+1/2O2->SO3
f) H2O2->H2O+1/2O2