Chapter 9 chemistry Victory Charter

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If, in the reaction A + B >>> C + D, the quantity of B is insufficient to react with all of A

B is the LR

The measured amount of product obtained from a chemical reaction is the

actual yield

Molar mass can be used to relate

mass of reactant to moles of reactant, moles of product to mass of product, mass of product to moles of product

Stoichiometry is the branch of chemistry that deals with elements in compounds and with reactants and products in chemical reactions, focusing on

mass relationships

A balanced chemical equation allows you to determine

mole ration of any two substances in the reaction

The efficiency of a chemical reaction is best expressed by the

percentage yield

in stoichiometry, molar mass is used to

relate the mass of a substance to the amount in moles of that substance

The coefficients in a chemical equation represent the

relative number of moles of reactants and products

Reaction stoichiometry is based on chemical equations and

the law of conservation of mass

In the chemical equation wA + xB >>> yC+zD, if you know the number of moles of A that react, you can determine

the number of moles of each reactant and product

The number of significant figures in an answer to a stoichiometry problem is determined only by

the number of significant figures of any measured quantities in the problem

If, in the reaction A + B >>> C + D, the quantity of B is insufficient to react with all of A,

the reaction stops


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