p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; text-align: justify; font: 14.0px 'PingFang SC'; color: #000000; -webkit-text-stroke: #000000}span.s1 {font-kerning: none}span.s2 {font: 14.0px 'Times New Roman'; font-kerning: none}span.s3 {font: 9.3px 'Times New Roman'; font-kerning: none} 在 CuCl 2 浓溶液逐渐加入稀释时,溶液颜色由黄棕色经绿色而变为蓝色,其原因是生成了 Cu(OH) 2