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chemistry 11th

chapter 3 & 4

QuestionAnswer
____ quantitative relationships between substances involved in chemical changes. Stoichiometry
What are symbolic representations which specify the elements present in a compound as well as the relative numbers of atoms of each element present? Chemical formulas
What is the smallest particles of a compound which possess a unique set of properties and are capable of independent existence? Molecules
____ tells how many of each type of atom are found in an actual molecule of that substance. Molecular Formula
____ shows only the simplest ratio of atoms in a compound Empirical Formula
____ shows the simplest ratio of atoms in a molecule Formula Unit
OH Hydroxide
CO3 Carbonate
NO3 Nitrate
____ is the sum of the atomic masses, in atomic mass units (u), of all the atoms in the formula of the compound. Molecular Mass
____ is the number of atoms in exactly 12g of carbon-12. Avogadro's Number
A ____ is the amount of a substance containing the same number of particles as exactly 12g of carbon-12. Mole
____ is the mass in grams of one mole of that substance. Molar Mass
A ____ is a symbolic representation of a chemical reaction. Chemical Equation
____ is the symbols of the substances that react are written on the left reactants
____ The symbols of the substances produced; are written on the right. Product
Who stated: "Atoms are not created or destroyed in chemical reactions, only rearranged." Dalton
____ is the sum of the masses of the products is always epual to the sum of the masses of the reactants. Law of conservation of mass
AB --> A+B Decomposition reaction
A+B--> AB Combination reaction
A+BC--> AC+B Single displacement reaction
AC+BD--> AD+BC Double displacement reaction
____ the reactant that determines the amount of product that can be formed. Limiting reactant
____ a chemical equation which shows only those ions that react and ignores ions which do not react. Net ionic equation
Created by: turtlefan1818
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