Ответы на вопрос:
1) c2h6 + hcl c2h5cl + hcl 2c2h5cl + 2na c4h10 + 2nacl 2c4h10 + 13o2 8co2 + 10h2o co2 + cao caco3 2) c3h8 + br2 c3h7br + hbr 2c3h7br + 2na c6h14 + 2nabr c6h14 c6h12 + h2 c6h12 + 9o2 6co2 + 6h2o
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