磷在氧气中燃烧 4P+5O2=点燃=2P2O5硫磺在空气中燃烧 S+O2=点燃=SO2铁丝在氧气中燃烧 3Fe+2O2=点燃=Fe3O4木炭在氧气中燃烧 C+O2=点燃=CO2点燃氢气 2H2+O2=点燃=2H2O镁在空气中燃烧 2Mg+O2=点燃=2MgO实验室用过氧化氢...