How to Predict Products of Chemical Reactions ?

How to predict products of chemical reactions? how to predict products of chemical reactions well consider the first type reactions which we call complete combustion reactions these reactions are carried in the presence of excess of oxygen for example these reactions are ethane react with oxygen gas now we will always get two products the one is carbon dioxide gas and the another is water H2O just remember that in case of combustion reactions we will always get carbon dioxide gas and water as products now consider these two combustion reactions can you guess the products of these reactions well it is super easy butene react with oxygen gas to form carbon dioxide gas plus water similarly ethanol react with oxygen gas to form carbon dioxide gas and water remember that I am not balancing these reactions because the video will become very long therefore in case of complete combustion reactions if organic compounds react with the axis of oxygen gas we will always get carbon dioxide gas plus water now the second type is incomplete Incomplete Combustion Reactions combustion reactions these reactions are carried out and the presence of lack of oxygen for example consider the previous reactions in case of incomplete combustion reactions carbon mono oxide gas and water is formed hence E10 react with oxygen gas to form carbon monoxide plus water butane react with oxygen gas to form carbon mono oxide plus water and ethanol react with oxygen gas to form carbon mono oxide plus water thus noted down all these examples now the third type is combination Combination Reactions reactions the word combination reminds us that a plus b reactants combined together to form only one product for example hydrogen gas plus oxygen gas combined together to form water similarly hydrogen gas plus nitrogen gas combined together and we get ammonia NH3 thirdly magnesium plus oxygen gas combined together to form magnesium oxide similarly any element like sodium calcium potassium will combine with oxygen to form sodium oxide potassium oxide calcium oxide fourthly sodium plus chlorine gas combined together to form sodium chloride fifthly carbon plus oxygen combined together to form carbon dioxide gas sixthly magnesium oxide plus carbon dioxide gas combined together to form magnesium carbonate hence we learn the products of some important reactions like formation of oxides when magnesium plus oxygen react together they form oxide secondly we learned the formation of carbonates like magnesium carbonate the snorted down all these important examples now the fourth type is decomposition reactions in such type of Decomposition Reactions reactions we heat the product a and it breaks down into B for example consider silver bromide when we heat it it decomposes into silver and bromine secondly consider calcium carbonate when we heat it it decomposes into calcium oxide plus carbon dioxide gas remember that carbon ads always decompose into carbon dioxide gas thirdly consider magnesium hydroxide it decomposes into magnesium oxide plus water remember that hydroxide like magnesium hydroxide always produces water and decomposition reactions lastly consider zinc carbonate pause the video and try to predict its products well it is a carbonate we have already learned that it decomposes into zinc oxide plus carbon dioxide gas just remember all these decomposition reactions the fifth type is displacement reactions in such type of reactions let's consider a plus BC reactants now the reactant a will displays or kick out the bee we will get AC plus b that's why we call it displacement reactions for example consider potassium plus water remember that when an element like potassium sodium magnesium calcium react with water they always displaces hydrogen gas from it we get potassium hydroxide similarly we get sodium hydroxide magnesium hydroxide calcium hydroxide Etc secondly consider zinc plus HCL here zinc is electropositive and chlorine is electronegative hence zinc react with chlorine we get zinc chloride plus hydrogen gas thirdly consider aluminum plus nickel chloride here aluminum will displace nickel by reacting with chlorine we get aluminum chloride plus nickel fourthly consider iron plus copper chloride pause the video and try to predict its product well iron is positive species chlorine is negative species hence iron will react with chlorine and it will displace copper thus these are the displacement reactions finally let me teach you the double displacement reactions let's consider a Type 6: Double Displacement Reactions general reaction remember that inner reacts with the inner and the outer reacts with the outer I mean a will react with the D and we get a d while B will react with the c and we get BC for example consider sodium chloride Plus silver nitrate and aqueous solution now outer with outer I mean sodium will react with nitrate we get sodium nitrate while inner with inner I mean silver will react with chlorine to form silver chloride as a precipitate now consider these reactions here pause the video and try to predict their products well it is super easy outer with outer potassium react with sulfate we get potassium sulfate hydrogen react with hydroxide we get water in this case sodium reacts with chlorine we get sodium chloride hydrogen react with carbonate we get carbonic acid but wait a minute the carbonic acid decomposes to carbon dioxide gas plus water H2O lastly silver reacts with chlorine we get silver chloride hydrogen reacts with nitrate we get nitric acid hno3 thus using this trig we can predict the products of any chemical reaction if you want to learn more about chemical reactions watch our video and its link is given in the description [Music]