eneres Posted January 31, 2009 Share Posted January 31, 2009 When Calcium react with Copper(II) Nitrate, the balanced equation is simply: Ca(s) + Cu(NO3)2 (aq) --> Ca(NO3)2(aq) + Cu(s) [no gas produced] Why is it that hydrogen gas is also produced in the same reaction: Ca(s) + 2H2O(l) --> Ca(OH)2(aq) + H2(g) What would then be the complete balanced equation for the reaction between Calcium and Copper(II) Nitrate when there are 2 different reactions occuring in one chemical reaction? Hence how do I determine when the water in an aqueous solution will or will not have a reaction to produce a gas in all other chemical reactions? Do aqueous solutions have any specific reactions in chemical reactions? Link to comment Share on other sites More sharing options...
vedmecum Posted February 6, 2009 Share Posted February 6, 2009 for a reaction to occur there must be decease in free energy . if there are two or more reaction then the one with large decrease in free energy will occur at faster rate . as far as your problem is concerned both reaction is feasible but first one occur at faster rate . i think this might help you. Link to comment Share on other sites More sharing options...
hermanntrude Posted February 8, 2009 Share Posted February 8, 2009 If you havent covered free energy yet, you will if you do first year degree-level chemistry courses. Link to comment Share on other sites More sharing options...
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