Chemistry Ch. 7 Question Preview (ID: 62759)
Chemistry.
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The number that reflects the charge an atom in a compound would have if all the bonding electrons were given to the most electronegative element in the compound.
a) oxidation number
b) empirical formula
c) molecular formula
d) Avogadro's number
The system of names for chemical compounds
a) nomenclature
b) molecular formula
c) empirical formula
d) percent composition
A method of expressing the number of each type of atom in a molecular compound by using prefixes
a) Greek prefix system
b) Stock system
c) nomenclature
d) oxidation number
A method of expressing the oxidation state of metal ions using Roman numerals
a) Stock system
b) Greek prefix system
c) oxidation number
d) nomenclature
A compound in which hydrogen is the first element
a) acid
b) mole
c) polyatomic atom
d) nomenclature
A compound that has a positive or negative charge
a) polyatomic ion
b) mole
c) acid
d) nomenclature
The amount of substance contained in 6.022 x 10^23 particles.
a) mole
b) polyatomic ion
c) nomenclature
d) acid
The number of particles in one mole of an element, formula unit, or molecule; 6.022 x 102^3.
a) Avogadro's number
b) oxidation number
c) percent composition
d) molecular formula
The mass in grams of a mole of atoms
a) gram-atomic mass
b) gram-molecular mass
c) gram-formula mass
d) percent composition
The mass in grams of a mole of molecules.
a) gram-molecular mass
b) gram-formula mass
c) gram-atomic mass
d) percent composition
The mass in grams of a mole of a formula unit
a) gram-formula mass
b) gram-atomic mass
c) gram molecular mass
d) percent composition
An expression that tells the type of atoms present in a compound and exactly how many of each atom is in each unit of the compound.
a) molecular formula
b) empirical formula
c) Greek prefix system
d) Stock system
An expression that tells the type of atoms present in a compound and expresses them in the lowest possible whole number ratio for each unit of the compound
a) empirical formula
b) Stock system
c) Greek prefix system
d) molecular formula
A quantity that expresses the relative amount of an element in a compound based on mass.
a) percent composition
b) oxidation number
c) Avogadro's number
d) mole
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