CaO + H2O → Ca(OH)2
Calcium Oxide + water →Calcium hydroxide
The reaction is:CaCO3------------CaO + CO2
With this symbol:
A general equation doesn't exist; this depends on type of the chemical reaction involved.
This reaction is:MgO + C = Mg + CO2MgO + C -> 2Mg +CO2
In words, this equation is carbon dioxide plus calcium hydroxide gives calcium carbonate plus water. The cloudiness is the calcium carbonate which appears as a solid. The symbol equation is CO2(g) + Ca(OH)2(aq) CaCO3(s) +H2O(l)
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S+O2 = SO2
The reaction is:CaCO3------------CaO + CO2
CaCO3
2Ca + O2 ------> 2CaO
c+h2o
Ca + O = CaO.
It is CaCO3, also known as Calcium Carbonate.
One possibility is: 2 SO2 + O2 = 2 SO3
Symbol equations for reactions are written using chemical formulae.
C + O2 = CO2 (an oxydation reaction)
With this symbol: