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Unformatted text preview: Stoichiometry: the relationship among the quantities of reactants and products involved in chemical reactions: Chemical equation: a representation of a chemical reaction using the chemical formulas of the reactants and productions; a balanced chemical equation contains equal numbers of atoms of each element on both sides of the equation Reactant: a starting substance in a chemical reaction; it appears to the left of the arrow in a chemical equation Product: a substance produced in a chemical reaction; it appears to the right of the arrow in a chemical equation Combination reaction: a chemical reaction in which two or more substances combine to form a single product Decomposition reaction: a chemical reaction in which a single compound reacts to give two or more products Combustion reaction: a chemical reaction that proceeds with evolution of heat and usually also a flame; most combustion involves reaction with oxygen, as in the burning of a match Formula weight: the mass of the collection of atoms represented by a chemical formula Molecular weight: the mass of the collection of atoms represented by the chemical formula for a molecule Mole: a collection of Avogardos number of objects Avogardos number: the number of 12 C atoms is exactly 12 g of 12 C; it equals 6.022 x 10 23 Molar mass: the mass of one mole of a substance in grams, it is numerically equal to the formation weight in atomic mass units Limiting reactant: the reactant present in the smallest stoichiometric quantity in a mixture of reactants; the amount of product that can form is limited by...
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