请用英语解释下列概念的含义： 1.chemical compounds 2.stoichiometric coeficients 3.Mixtures 4. homogeneous mixture 5. heterogeneous mixture
请用英语解释下列概念的含义： 1.chemical compounds 2.stoichiometric coeficients 3.Mixtures 4. homogeneous mixture 5. heterogeneous mixture
发布时间：2025-10-30 19:09:49
