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Catalytic converter is one of the technologies used currently to remove NO2(toxic) gas generated by real automobile engines by using isocyanic acid, HNCO according to the following unbalanced reaction: _HNCO + NO2 ----> __N2(g) + ___CO2 + ___ H2O Please help me balance these type of questions and how you approach these type of problems as they are more complex for me.