Problems 1.8: Reaction Conditions The products of a chemical reaction depend on the conditions under which the reaction is performed. Three chemical equations are shown below for the combustion of ethylene gas (C2H4) with oxygen gas (O2). We use (g) to indicate a gas and (s) to indicate a solid. You can see that one of products changes in the three reactions. C2H4 (g) + O2 (g) C(s) + H2O(g) C2H4 (g) + O2 (g) CO(g) + H2O(g) C2H4 (g) + O2 (g) CO2 (g) + H2O(g) a. For each reaction, insert the coefficients (numbers preceding each reactant and product) that are necessary to balance the equation according to the principle of "conservation of matter." b. Imagine that you perform this reaction in a closed container where the amount of available O2 gas is very low. Under this condition O2 is referred to as a limiting reagent. All things being equal, which of the three reactions do you think is most likely to happen? Briefly give your reasoning. c. Now imagine that you perform this reaction in the open air where the supply of is very abundant. Which of the three reactions do you think is most likely to happen? Why? O2 gas