A:c(H+)等于1×10﹣7 mol•L﹣1的溶液一定是中性溶液
B:0.2 mol•L﹣1 CH3COOH溶液中的c(H+)是0.1 mol•L﹣1 CH3COOH溶液中的c(H+)的2倍
C:室温时,pH=2的CH3COOH和0.01 mol•L﹣1 NaOH溶液等体积混合,混合后pH=7
D:等物质的量浓度的Na2S和NaHS混合溶液中:2c(Na+)=3c(S2﹣)+c(HS﹣)+c(H2S)
下列说法中正确的是( )
—He is trying to a new shower in the bathroom.