室温下,对于0．10 mol·L-1的氨水,下列判断正确的是
A．与AlCl3溶液发生反应的离子方程式为Al3++3OH- Al(OH)3↓ |
| B．其溶液的pH=13 |
| C．用适量水稀释后,NH3·H2O电离度和溶液pH都增大 |
| D．加水稀释后,溶液中c(NH4 +)·c(OH-)变小 |
相关试题
I can’t leave. She told me that I ______ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—— Do you mind my opening the window? It’s a bit hot in here.
—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
C．Yes, I do | D．Come on |
It’s high time you had your hair cut ; it’s getting _______ . 
| A．too much long | B．much too long |
C．long too much | D．too long much |
My friend showed me round the town, ______ was very kind of him. 
| A．which | B．that | C．where | D．it |
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