How can one tell how much of each reactant will be used in a reaction?A.The molar masses of the molecules tell how many moles of each reactant are used.B.The ratio of the coefficients tells the ratio of moles of reactants used in the reaction.C.The ratio of the coefficients tells the ratio of grams of reactants used in the reaction.D.The molar masses of the molecules tell how many grams of each reactant are used.SUBMITarrow_backPREVIOUS

How does one determine how much of a molecule is produced in a reaction?A.Oxidation states are used to calculate the number of product molecules.B.The mass of the products is determined by adding the mass of the reactants.C.The coefficients and molar masses are used to calculate amounts of molecules.D.The molar masses of the molecules tell how many grams of product will form.SUBMITarrow_backPREVIOUS

How is stoichiometry used to calculate amount of product from amount of reactant?A.The coefficients give the ratio of actual yield to theoretical yield.B.The coefficients give the ratio of grams reactant to grams product.C.The coefficients give the ratio of moles reactant to moles product.D.The coefficients give the ratio of moles product to grams product.

How is the equilibrium constant of a reaction determined?A.The molarity of products is divided by the molarity of reactants.B.The molarity of products is multiplied by the molarity of reactants.C.The molarity of reactants is subtracted from the molarity of products.D.The molarity of reactants is divided by the molarity of products.SUBMITarrow_backPREVIOUS

What does the reaction rate say about a reaction?A.It tells what the concentration of reactants is.B.It tells if a catalyst was used in the reaction.C.It tells how quickly products will be made.D.It tells what activation energy the reaction has.

What is the equation for calculating moles?Mass × MrMass/MrMr/massMass – Mr 2How many moles are there in 1.2 g of sodium hydroxide?1.20.034403What is the first thing you should do when calculating reacting masses?Calculate the moles for each substanceCalculate the Mr for each substanceWrite out the balanced equationCalculate the ratio of the moles for each substance4What do we call a reactant that is left over at the end of a reaction?BalancedWastedLimitingIn excess5Three moles of Mg react with 5 moles of HCl to form MgCl2 and H2. What is the limiting reagent in this reaction?HClMgMgCl2H2