what is HCl + CaCo3  (what is the reaction?)?
923888
CaCO3(s) + 2 HCl(aq) --> CaCl2(aq) + CO2(g) + H2O(l)
957775
Ca(OH)2 + CO2 --> C(OH) + CaO\n\nIs unbalanced..
843536
Calcium Carbonate (CaCO3) is insoluble, therefore it is the precipitate --> makes the solution cloudy.  The H2O is just plain old water. I believe the equation to which you are referring is H2CO3 + Ca(OH)2 --> CaCO3 +H2O, however, but no big deal.
750179
NaCl2 + NaCO3 ==> NaCO3 + NaCl2 NOTE: these two reactants will not react because the reactants and the products are identical\n\nCu + O2 ==> CuO2   This is already balenced\nCuSO3 + Fe ==> FeSO3 + Cu   The charge is not given so procuts could be different\n\n2HCl + 2Zn ==> 2ZnCl + H2\nMnO2 + H2O2 ==> No reaction: similar to NaCl2+NaCo3\n\nGood luck
1054682
It "fizzes".  When you put acid on CaCO3 it reacts to release CO2 gas:\n\nCaCO3 + 2H+(aq)  -> Ca2+(aq) + H2O + CO2(g)
375585
dilute hydrochloric acid reacts with the carbonate component of the limestone and the marble, and a few drops on the surface of the rock will 'fizz' allowing identification  (non carboniferous rocks such as granite will not give any reaction) . I dont know the exact chemical reaction, but I think hyrogen or maybe carbon dioxide is given off, hence the fizz ( gas bubbles)
468452
CO2 +H2O<-->H2CO2<---->HCO2 + H\nCarbonic Acid can react with Hidrogen ions (which lower the pH of the blood) to form bicarbonate; which can be later removed by the system in the kidneys or through respiration.  The formation of bicarbonate removes an H ion from solution thus helping mantain pH equillibrium in the body at around 7.4
744922
HClO2 + Ba(OH)2 -> BaClO2 + H2O\n\n2(NH4)3PO4 + 3Ca(NO3)2 -> 6(NH4)(NO3) + Ca3(PO4)2\n\nFinished and balanced.
896682
Place a 2 in front of the HCl to balance the equation. Then you can see that for one mole of calcium carbonate, you get 1 mole of carbon dioxide.
222097
OH-(aq) + HC2H3O2(aq)---> H2O(l) + C2H3O2-(aq)
272349
Ca(s) + 2HCl(aq)-->CaCl2 + H2(g)\n\nor...\n\nCalcium Chloride and Hydrogen Gas... you know... the stuff that fuels rockets! :)
332502
Yeah, I've actually done this reaction before several times. \n\nTheoretically, this is a metathesis reaction, also called a double-replacement reaction.  Essentially, the ions switch partners.  \n\nCaCO3 + 2HCl ---> CaCl2 + H2CO3\n\nNow, the CaCl2 is a soluble salt, so that's actually just like ions floating around in solution. \nThe H2CO3 is carbonic acid, which is actually just carbon dioxide, CO2, dissolved in water.  The carbon dioxide will immediately come out of solution and bubble out, which is totally observable, just like putting baking soda and vinegar together.  \n\nThe more complete reaction full ionic equation is the following:\nCaCO3 + 2H+ + 2Cl- ---> Ca2+ + 2Cl- + H2O + CO2
145111
The reaction formula is\n\nCH2COOH                           \nCH(OH)COOH (aq) + NaHCO3 (aq)----> \nCH2COOH                            \n\nCitric Acid\n\n       CH2COONa\n CH(OH)COONa    (aq)+ H20 (l) + CO2(g)\n       CH2COONa
206920
lime = CaCO3; CaC03 + 2HCl --> CaCl2 + CO2 + H2O. You will get 1 mole of CO2 (44g) for every mole of lime reacted.
50281
This is an acid base reaction, but the other answer is incorrect about the product. There is no Cl present. Here’s the balanced equation:\n\n2NaOH (s) + H2CO3 (aq) ➔ Na2CO3 + 2H2O\n\nNaOH is the base. H2CO3 is the acid.
426896
BaCO_3+HCl - BaCl_2+CO_2+H_2_O\n\nbalance it
1116694
the reaction leads to production of hydrogen gas ...\n\n\n2Al(s) + 6HCl(aq) → 2Al3+(aq) + 6Cl-(aq) + 3H2(g)