The scale formation in a kinetic used for boiling water i...
The scale formation in a kinetic used for boiling water is caused by the presence in water of?
calcium sulphate
calcium carbonate
calcium hydrogen carbonate
calcium hydroxide
magnesium sulphate
Correct answer is C
The scale is produced when soluble Ca(HCO3)2 breaks down on heating to form insoluble CaCO3
eqn Ca (HCO3)2(aq) -----> CaCO3 (s) + CO2 (g) + H2O (l)
A factor that is considered most important when siting a chemical industry is? ...
Which of the following reactions is correct as as written? ...
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Which of the following equations represents a substitution reaction? ...
The IUPAC name of the compound represented by the structure below is ? ...
If the molar mass of X(HCO3)2 is 162 g mol−1, determine the relative atomic mass of X....
2H2S(g) + SO2(g) + H2O(I) → 3S(s) + 3H2O(I)..........(i) 3CuO(s) + 2NH3(g) → 3Cu(s) + 3H2O(I) + ...