①硫+氧气 →点燃 二氧化硫;
②蜡烛+氧气 →点燃 二氧化碳+水;
③碱式碳酸铜 →加热 氧化铜+二氧化碳+水;
④乙炔+氧气 →点燃 二氧化碳+水.
⑤氯酸钾 →加热二氧化锰 氯化钾+氧气.
We believe the public services in our city are good, and we are working hard to make it even .