下列指定反应的化学方程式正确的是（ ）
A．酸雨形成的原因CO2+H2O═H2CO3
B．证明铜的活动性大于银：Cu+2AgCl═2Ag+CuCl2
C．用含氢氧化铝的药物治疗胃酸过多：Al（OH）3+3HCl═AlCl3+3H2O
D．超氧化钾（KO2）与二氧化碳反应生成碳酸钾和氧气：2KO2+CO2═K2CO3+O2
相关试题
--- I've just got a postcard from my pen friend.
--- Let me have a look
. Wow.nice card!
| A． | What | B． | What a | C． | How | D． | Why |
--- What is your favourite sport?
--- Swimming, I think. It's of all.
| A． | earsier | B． | more difficult | C． | the most interesting | D． | the most boring |
---I use your ruler, Lingling?
--- Sure. Here you are.
| A． | May | B． | Would | C． | Need | D． | Must |
--- Do you like watching TV?
---Yes, I. But only after I finish my homework.
| A． | am | B． | do | C． | does | D． | did |
粤公网安备 44130202000953号