A:CuSO4 NaCl KNO3
B:NaOH NaCl NaNO3
C:Na2SO4 NH4Cl ZnCl2
D:K2SO4 AgNO3 NaCl
Amy has got lots of friends.(改为一般疑问句并做否定回答)
____Amy ____lots of friends? No, ____ ____.
常温下,欲配制密度为1.1g•cm﹣3、浓度为6mol•L﹣1的稀盐酸,在体积为100mL、密度为1.19g•cm﹣3、浓度为12mol•L﹣1的浓盐酸中需加蒸馏水 ____