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Given the Following Reactions:
A HO2+H2H+H2O2\cdot \mathrm { HO } _ { 2 } + \mathrm { H } _ { 2 } \rightarrow \cdot \mathrm { H } + \mathrm { H } _ { 2 } \mathrm { O } _ { 2 }

question 14

Multiple Choice

Given the following reactions:
A. HO2+H2H+H2O2\cdot \mathrm { HO } _ { 2 } + \mathrm { H } _ { 2 } \rightarrow \cdot \mathrm { H } + \mathrm { H } _ { 2 } \mathrm { O } _ { 2 }
B. HCO+HCH2O\mathrm { HCO } + \cdot \mathrm { H } \rightarrow \mathrm { CH } _ { 2 } \mathrm { O }
C. C2H4CH3CH\mathrm { C } _ { 2 } \mathrm { H } _ { 4 } \rightarrow \cdot \mathrm { CH } _ { 3 } \mathrm { CH }
D. CH4+O2CH3+HO2\mathrm { CH } _ { 4 } + \mathrm { O } _ { 2 } \rightarrow \cdot \mathrm { CH } _ { 3 } + \cdot \mathrm { HO } _ { 2 } Which of these are propagation steps?


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