ionisation of CaO in water..........
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CaO(s)+H2O(l)→Ca(OH)2(s)CaO(s)+H2O(l)→Ca(OH)2(s) ΔH<<0
Elements combine to form compounds, and can only do so in specific proportions. When mixed, calcium oxide and water react together highly exothermically to form calcium hydroxide
If water is dripped slowly onto a lump of calcium oxide, a hissing is heard as excess water is turned to steam by the heat produced in the reaction.
Elements combine to form compounds, and can only do so in specific proportions. When mixed, calcium oxide and water react together highly exothermically to form calcium hydroxide
If water is dripped slowly onto a lump of calcium oxide, a hissing is heard as excess water is turned to steam by the heat produced in the reaction.
Anonymous:
but i haven't ised the word combines
In this case u have to use the word 'combine'
!!!!
ok
thanks again
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