2Ca + 3O2 + 2C -> 2CaCO3
Ca (2+) + CO3 (2-) --> CaCO3
Carbon dioxide and water. 2HNO3(aq) + CaCO3(s) => Ca(NO3)2 (aq) + H2O + CO2
Ca(OH)2 + Na2CO3 = CaCO3 + 2 NaOH
CaCO3 also known as limestone.
Add a reflux agent (CaF2) and electrolyse in a cell.
The equation is H2O + CO2 + CaCO3 --> Ca(HCO3)2
hg2co3 + ca(br)2 equal to caco3 + hg2(br)2
(Don't forget to balance it) The precipitate here has to be 2NaCl, as Ca(CO3)2 technically dissolves.
CaCO3 + 2H2O = Ca(OH)2 + H2O + H2 NB The water is acting as a very weak acid. It is a very slow reaction; So you won't see anything happening.
0.50 moles CaCO3 (1 mole Ca/1 mole CaCO3)(6.022 X 1023/1 mole Ca)= 3.0 X 1023 atoms of calcium===================
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2 Ca + 2O2 = 2(CaO2)