When calcium carbonate (CaCO3) reacts with hydrochloric acid (HCl) the reaction is:- CaCO3 + 2 HCl -> CaCl2 + H2O + CO2 The weight for 1 mole of calcium carbonate is the atomic weight in grams or 40.8 + 12.011 + 3 x 15.9994 = 100.8092 grams 1.25 grams of CaCO3 is therefore 1.25/100.8092 or .0124 mole There must have been twice this many moles of HCl in the solution or 0.0248 mole. The molarity of the solution is the number of moles per litre so with 0.0248 in 25.5 ml there must be .97 mole in 1 litre. The HCl solution must therefore be .97 molar
I'm not exactly sure but I think the answer is 3.425 grams of CaCO3.
A chemical reaction, because when the two substances were combined a color change and a precipitate formation both occured.
catalysts accelerate the rate of reaction but does not get consume in reaction, and reappear after reaction is over, whereas reagents initiate reation and get consume in reation.
When sodium chloride is added to a solution of silver nitrate (both are very soluble in water), silver chloride, which is only very slightly soluble, will precipitate.
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A fission reaction in uranium requires neutrons.
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no
products
water
Catalyst
A chemical reaction, because when the two substances were combined a color change and a precipitate formation both occured.
thermodynamics
Water and a salt.
catalysts accelerate the rate of reaction but does not get consume in reaction, and reappear after reaction is over, whereas reagents initiate reation and get consume in reation.
When sodium chloride is added to a solution of silver nitrate (both are very soluble in water), silver chloride, which is only very slightly soluble, will precipitate.