A:稀释浓硫酸时,将水注入浓硫酸并用玻璃棒不断搅拌
B:稀释好的浓硫酸装在试剂瓶中并贴上标签
C:镊子夹取pH试纸测定溶液的酸碱度(pH值)
D:用无色酚酞鉴别氯化钠溶液和稀硫酸
— Yes, I am.
2NO(g)+2CO(g) ⇌催化剂 2CO2(g)+N2(g) △H=-akJ·mol-1(a>0)
Your mother prepared delicious food for us yesterday. Please say thanks ____ her.