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AP Chemistry Chapter 3

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Section 1

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reactants

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Chemistry Science

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Mar 1, 2020

Cards (17)

Section 1

(17 cards)

reactants

Front

a starting substance in a chemical reaction; on left of the arrow in a chemical equation

Back

chemical equation

Front

a representation of a chemical reaction showing the relative numbers of reactant and product molecules

Back

Avogadro's number

Front

mole

Back

mass percent

Front

the percent by mass of a given element in a compound

Back

molar mass

Front

the mass in grams of one mole of molecules or formula units of a substance

Back

molecular formula

Front

the exact formula of a molecule, giving the types of atoms and the number of each type

Back

limiting reactant

Front

the reactant that is completely consumed when a reaction is run to completion

Back

empirical formula

Front

the simplest whole number ratio of atoms in a compound

Back

mole ratio

Front

the ratio of moles of one substance to moles of another substance in a balanced equation

Back

percent yield

Front

the ratio of the actual yield to the theoretical yield expressed as a percent.

Back

mass spectrometer

Front

an instrument used to determine the relative masses of atoms by the deflection of their ions on a magnetic field

Back

average atomic mass

Front

atomic mass, the weighted average of the atomic masses of the naturally occurring isotopes of an element

Back

stoichiometric quantities

Front

quantities of reactants mixed in exactly the correct amounts so that all are used up at the same time

Back

products

Front

a substance resulting from a chemical reaction; on right of the arrow in a chemical equation

Back

mole

Front

the number equal to the number of carbon atoms in exactly 12 g of pure carbon-12; 6.022 x 10^23

Back

theoretical yield

Front

the maximum amount of a given product that can be formed when the limiting reactant is completely consumed.

Back

Haber process

Front

the manufacture of ammonia from nitrogen and hydrogen, carried out at high pressure and high temperature with the aid of a catalyst

Back