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Chemists
________ construct unbalanced equations to identify reactants and products.
mole concept
The ________ allows us to convert this information to the masses of the substances in the reaction.
chemical equation
The coefficients in a(n) ________ represent the relative numbers of molecules in a reaction.
laboratory size
In chemistry the counting unit for numbers of atoms, ions, or molecules in a(n) ________ sample is the mole, abbreviated mol.
chemical formulas
The ________ to the left of the arrow represent the starting substances, called reactants.
Stoichiometry
________ (Greek stoicheion,"element, "and metron, "measure) "provides an essential set of tools widely used in chemistry.
Amole
________ is always the same number, but 1- mol samples of different substances have different masses.
empirical formula
The ________ for a substance tells us the relative number of atoms of each element in the substance.
Combustion
________ of oxygen- containing derivatives of hydrocarbons, such as CH3OH, also produces CO2 and H2O.
Avogadros number
________, NA, in honor of the Italian scientist Amedeo Avogadro (1776- 1856), and it is often cited with units of reciprocal moles, 6.02* 1023 mol- 1.
Stoichiometry
________ is built on an understanding of atomic masses, chemical formulas, and the law of conservation of mass.
chemical formulas
The ________ to the right of the arrow represent substances produced in the reaction, called products.
Avogadros number
The molar mass and ________ are used as conversion factors to convert grams to moles and then moles to atoms.
combination reactions, decomposition reactions, and combustion reactions
Three types of reactions
Note 
Flashcard (54)