Photos C H2O

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C h2o. Ch=Ch+h2o=c6h6. C6h12 c6h6 h2. C8h18 o2 горение. Ch6h12 + o2.
Ch=Ch+h2o=c6h6. C6h12 c6h6 h2. C8h18 o2 горение. Ch6h12 + o2.