根据下列实验装置图,按要求回答下列问题:        (1)写出标

根据下列实验装置图,按要求回答下列问题:

 


    

1)写出标有序号的仪器名称:①______________;②______________

2)实验室制取CO2的化学反应方程式为_______________________________________;制取并收集该气体应选择的装置是______________(填序号);若想控制反应速率,可以将仪器②用______________代替;­­­­­­­­­检验该气体的方法是_____________________________

3如果选择与制取CO2相同的发生装置来制取O2,则发生反应的化学方程式为

_____________________________,其基本反应类型是______________

答案

(1) 试管               长颈漏斗

      (2) CaCO3+2HCl=CaCl2+H2O+CO2             BE           分液漏斗(或注射器)

加入澄清石灰水,若石灰水变浑浊,证明是CO2         

(3) 2H2O2        2H2O+O2                 分解反应

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