What is the chemical formula for air? Chemistry Chemical Reactions Chemical Equations 1 Answer anor277 Jun 24, 2016 Air is a mixture comprising approx. 78% dinitrogen, 21% dioxygen, some argon (1%), and some (increasing) carbon dioxide (0.5%). Explanation: So air is a mixtures containing elemental gases, #N_2#, #O_2#, #Ar#, and gaseous compounds, #CO_2#. Answer link Related questions What is the chemical equation for photosynthesis? How can I know the relative number of grams of each substance used or produced with chemical equations? How can I know the relative number of moles of each substance with chemical equations? How do chemical equations illustrate that atoms are conserved? How can I know the formula of the reactants and products with chemical equations? How can I balance this chemical equations? Potassium metal and chlorine gas combine to form... How many types of chemical reactions exist? How can a chemical equation be made more informative? How can I balance this equation? ___ AlBr3 + ____ K2SO4 ---> ____ KBr + ____ Al2(SO4)3 How can I balance this equation? ____ Pb(OH)2 + ____ HCl ---> ____ H2O + ____ PbCl2 See all questions in Chemical Equations Impact of this question 32717 views around the world You can reuse this answer Creative Commons License