Ca + 2H2O = Ca(OH)2+ H2
CaCO3
2Ca + O2 ------> 2CaO
c+h2o
Ca + O = CaO.
Limestone is predominantly calcium carbonate, CaCO3, and reacts with hydrochloric acid as follows: CaCO3(s) + 2HCl(aq) --> CaCl2(aq) + CO2(g) + H2O
Calcium reacts with fluorine to form calcium fluoride (the symbol is CaF2).
CaCO3
CaCO3 + H2SO4 -> CaSO4 + CO2 + H2O Of course if you don't understand the above, well - you should have asked a better question :-)
2Ca + O2 ------> 2CaO
c+h2o
Ca + O = CaO.
It is CaCO3, also known as Calcium Carbonate.
Limestone is predominantly calcium carbonate, CaCO3, and reacts with hydrochloric acid as follows: CaCO3(s) + 2HCl(aq) --> CaCl2(aq) + CO2(g) + H2O
Hydrogen gas is released when calcium and water react.
A possible equation should be:2 Fr + 2 H2O = 2 FrOH + H2
CaO + H2O → Ca(OH)2 Calcium Oxide + water →Calcium hydroxide
Assuming that "lituam" was intended to read "lithium", the equation is: 2 Li + 2 H2O -> 2 LiOH + H2.