碱洗化验中加入甲醛的目的(用化学方程式表示)()
A、NaHS+H2O+HCHO=NaOH+CH2(SH)(OH)
B、NaHS+HCHO=NaOH+CH2(SH)(OH)
C、NaHS+H2O+HCHO=Na2S+CH2(SH)(OH)
D、Na2S+H2O+HCHO=NaOH+CH2(SH)(OH)
发布时间:2023-09-26 08:54:12
A、NaHS+H2O+HCHO=NaOH+CH2(SH)(OH)
B、NaHS+HCHO=NaOH+CH2(SH)(OH)
C、NaHS+H2O+HCHO=Na2S+CH2(SH)(OH)
D、Na2S+H2O+HCHO=NaOH+CH2(SH)(OH)