Answer
a) $2C+O_2\rightarrow 2CO$
b) $As_4+3O_2\rightarrow As_4O_6$
c) $2Ge+O_2\rightarrow 2GeO$
Work Step by Step
a) $2C+O_2\rightarrow 2CO$
b) $As_4+3O_2\rightarrow As_4O_6$
c) $2Ge+O_2\rightarrow 2GeO$
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