The coefficients in theequation can either mean particles or ____ ____- is the study of the amount of substances involved in a chemical ____. SO YOU MUST HAVE A ____ EQUATION TO DO THESE PROBLEMS!! ____ – is the ratio of moles of one element to another in a chemical reaction. The ____ in the equation represent the relative amounts of moles of reactants and ____. The ____ Reactant is the reactant that is completely consumed in the reaction. ____ yield is the difference between how much product is actually made in the lab versus how much product theoretically can be made. ____ – means the reaction ____ more energy from the surroundings than it releases so it feel ____. ____ – means the reactions ____ more energy to the surrounding than it absorbs so it feels ____.____ reactions are exothermic reactions.

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