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最佳答案:①Cu2+ + 2OH- ==Cu(OH)2(沉淀符号)②2H+ +CO32- ==H20+CO2(气体符号)③Ca2+ +2OH- +CO2(少)==CaCO
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最佳答案:全文翻译如下:Hello! Good morning to you today, I Duty! You like the World Formula One
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最佳答案:A person does not need a psychology degree, we can understand such a formula. Be