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26 terms

Chem, Chapter 7

Vocabulary review for chapter 7, chemical formulas
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polyatomic ion
An ion made of more than one atom.
formula unit
A compound's formula represents a definite amount of that compound called a ___.
molecule
A ___ is a neutral particle formed when neutral atoms combine.
chemical symbol
A ___ is a shorthand representation of an element.
ion
An atom that has become electrically charged.
empirical formula
The simplest whole-number ratio of atoms or ions in a compound is indicated by a(n) ___.
binary compound
A ___ is any compound containing only two elements.
ionic compound
A compound composed of charged particles is called a(n) ___
chemical formula
A(n) ___ is a combination of symbols representing the composition of a compound.
molecular formula
A formula for a compound that exists as a molecule is called a(n) ___.
oxidation number
The charge on a monatomic ion is known as its ___.
anion
a negatively charged ion
cation
a positively charged ion
Monatomic ion
an ion made out of one type of element only
polyatomic ion
an ion made out of more than 1 type of element. It is a molecule has has become charged.
oxide, O2-
The name and symbol of the oxygen ion
Al2O3
The proper formula if you try to combine aluminum and oxide
sodium oxide
proper name for Na2O
Iron (II) Sulfide
proper name for FeS (since Fe has more than 1 oxidation number)
Uranium Hexafluoride
name of UF6 (using the prefix method for binary molecules)
Hydrochloric acid
Name of this acid - HCl. (acids get a different set of naming rules
Nitric Acid
Name of this acid - HNO3. (acids get a different set of naming rules
Sulfuric Acid
Name of this acid - H2SO4. (acids get a different set of naming rules
Heptane
Name this organic compound - C7H16 (remember organics gets its own set of naming rules)
6
How many formula units are shown in the following - 6H2SO4
C4H9
What is the empirical formula that goes with the following molecular formula - C8H18