澄清石灰水,稀盐酸,无色酚酞,稀硫酸,四种试剂中不能用来检验久置的氢氧化钠溶液是否变质的是?

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/26 17:11:50
xUR*WIم)!FT VJZV^WQPQ+h!Mct Hke;ȰٽkOxcˮl"8ٚBm.[D=mHb3Vb$ ~^_T&56oWxNcbr5PlzԂReeo&j]dZTI0c6<0+ lP^E `sߗqALJ0Cj^3äf-6*l#ff 0Efɬyzr_tS &K;:RQVYKDL\1#OM+U^~ !e jv%{ T9X'sQ4 eƍIvpW-;C-牯gzԼ0UGAmW6oyJK*IuUM9[&A]؎'4y pEIq6NRFfW =@$CV d}^CUY]S<`xύ듩 .9g~U|Zҙ:eBB݀ؼ8+q(87vM49+oڸ@ɶ8_*sz 8v6" ;?WN 6B t,sIg4:)!DbP$J4􃼙" %d.iݓKq_jks%=gjWOLx~ H0 l7(Q09-CK%k2l_6[sPcƵjvbD'XIBP3Dx;Uʸڂz)%׎RO'1v;edeZOw9o+f;~|,kavHl:jg]9g}n0ғ֤K?:Vs901'3E} WbQ$"A\SXjͼ;9f |!BɎ|pwp#%ٳn{ncgsʽ/8B&a'9 [Яds\:߳nӽ7