Images СН4 2О2 СО2 2Н2О Г

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Сн4 2о2 со2 2н2о г. 2+2=4. С2н2 н2о. С2н2+о2. C2h2+ с2н5br.
2+2=4. С2н2 н2о. С2н2+о2. C2h2+ с2н5br.

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