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`When you are balancing the reaction __NO2 + __H2O + __O2 → __HNO3 , what number goes in front of O2?

`When you are balancing the reaction __NO2 + __H2O + __O2 → __HNO3 , what number goes in front of O2?View CommentsFlag Question

Answer

_4_NO2 + _2_H2O + O2 → _4_HNO3

leave the single O2 molecule the way it is to avoid causing an imbalance in the other compounds so just leave the way it is an balance the other parts .Explanation

_4_NO2 + _2_H2O + __O2 → _4_HNO3

Once balanced, the equation should be as follows

1, make sure the equation is correctly written as it is in the question

2, make sure that number of each element in the reactant side equals that in the product side

start by balancing each at a time until the whole equation is in balance without using decimals or reactions, rather whole numbers are recommended

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