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Please explain how to balance equation |
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Answer» How to balance a chemical equationWe take the reaction of formation of water.H2\xa0+ O2\xa0-->\xa0H2O\xa0(unbalanced equation for formation of water)This equation can be balanced by using certain steps as mentioned below.Step I: list the number of atoms of each element present on both sides of arrow.\t\xa0ReactantProductH22O21\t\xa0Step II: Begin balancing with the compound having maximum number of atoms. Following this rule we select H2O. Here there are 2 oxygen atoms on the reactant side but only 1 oxygen atom on the product side. So equation is unbalanced. In order to balance we need to do following step.\t\xa0ReactantProductInitial oxygen atom21To balance21 X 2\tSo the equation stands out to beH2\xa0+ O2\xa0\xa0--> 2H2O\xa0Step III: After balancing oxygen the equation is H2\xa0+ O2\xa0à 2H2O. So now we need to balance hydrogen atom.\t\xa0ReactantProductInitial hydrogen atom24To balance2 X 24\t\xa0So the final equation stands out to be2H2\xa0+ O2\xa0--> 2H2O U can use trial and error method |
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