____NH3+____O2---------NO+____H2O ____CH4+____O---------CO2+
everyone thinks little of the film.in fact,there is no ____o
_____Br2 +____NaOH------>____NaBr +____NaBrO3 +____H2O
配平化学方程式____NH3+_____CuO加热_____N2+____Cu+_____H2O
____o my god ._________Dear,Apprentice..____________________
___O2-+___H2O生成1个H2O2+____O2+___OH-
____NH4Cl + ____CuO → ____CuCl2 + ____Cu +____N2↑+ ____H2O
____Pt+____HNO3+____HCI=>____H2PtCI6+____NO+____H2O怎么配平?
___FeS2+___HNO3=____Fe(NO3)3+____SO2+_____NO+____H2O
___CuO + ____NH4Cl → ____CuCl2 +____N2↑+ ____Cu + ____H2O
某无色混合气体由NO、O2、NH3、CO2、HCL
O2,H2,CO2,NH3,CH4,H20,NO,NO2,等等
大气中含有多少ppm的CO CO2 NO NO2?