物质�学课上在氢氧化钠溶液与稀硫酸能否�生反应的实验中小宇同学�现�氢氧化钠溶液中滴加几滴酚酞试液溶液变红色当�该溶液中连续滴加稀硫酸 Template




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tomski物质�学课上在氢氧化钠溶液与稀硫酸能否�生反应的实验中小宇同学�现�氢氧化钠溶液中滴加几滴酚酞试液溶液变红色当�该溶液中连续滴加稀硫酸 coloring