How many liters of oxygen gas can react with 84.0 grams of lithium metal at standard temperature and pressure? show all of the work used to find your answer. 4li + o2 yields 2li2o

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Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products

+= + + balance the equation on coefficients, ex. 1,1,1