why?
2007-02-14 20:58:33 · 4 answers · asked by 171 1 in Science & Mathematics ➔ Chemistry
chalk is calcium carbonate and when it is added to hydrochloric acid a vigorous reaction will occur and bubbles will form (effervesence) resulting in calcium chloride and carbon dioxide and water. the effervesence is from the formation of carbon dioxide gas.
hope u understood my dear
2007-02-14 21:49:05 · answer #1 · answered by Pharmalolli 5 · 0⤊ 0⤋
Chalk or chemically CaCO3 + HCl givesH2O(water) + CO2(carbon dioxide) + CaCl2(Calcium chloride).
Here divalent calcium comines with monovalent chloride ions to form calcium chloride and liberates carbon dioxide gas and water.
2007-02-14 21:04:07 · answer #2 · answered by sindy 2 · 0⤊ 1⤋
Calcium Chloride (CaCl2) and Carbon Dioxide (CO2)
2007-02-14 21:06:10 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 1⤋
Yes.
2HCl + CaCO3 -> CaCl + H2O + CO2
Is the overall equation.
2007-02-14 21:03:47 · answer #4 · answered by Mr Hex Vision 7 · 0⤊ 1⤋