那兩種或以上的元素混合後有強烈的化學反應?

Does CaO, H2O are ELEMENT???it is quite funny!!what are their symbol???Do you know the defination of element???I am worried that you don't............
Anyway, if you are mentioning about the reaction between you ELEMENT, it should be fransium and fluroine gas:
2Fr + F2 --> 2FrF
I can't imagine about it, but fransium is rarely exsist in the nature, since it is ratioactive.
The other exophermic reaction should be caesium and fluorine gas,
2Cs + F2 -->2CsF
Good luck if you try to do it......

Does CaO, H2O are ELEMENT???

i like this

2 Group I(K, Cs, Ru) + 2H2O ---> 2KOH + H2
只要少量水, 就會好易爆
deuterium(Hydrogen with 1 proton and 1 neutron) + deuterium ---> Helium(with 2 proton and 1 neutron, relative atomic mass=3) + neutron + energy
this above reaction is used in atomic bomb.
2H2 + O2 ---> 2H2O

最多人知嘅有:
~石灰+水

鹽酸,硝酸,硫酸,硝鹼...+水 都會有反應(所有強酸強鹼+水都可)

*一定係水+入去先至有反應

fluorine+potassium or other lower alkali metals
white phosphorus undergoes self-combustion with oxygen

2007-03-12 22:58:54 補充：
the above is about element-to-element reactionsOthers:aluminium chloride watersiliconIVchloride waterExplosive reactions: all alkali metals and radium dilute acids.................

濃硫酸+水