实验室用高锰酸钾加热制取氧气和用过氧化氢制取氧气下列说法正确的是 A.都需要加热b.前者反应物是固体后者反应物是固体和液体c.都是化合 Template




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tomski实验室用高锰酸钾加热制取氧气和用过氧化氢制取氧气下列说法正确的是 a.都需要加热b.前者反应物是固体后者反应物是固体和液体c.都是化合 coloring