Transcript Chemistry Final Review

Chemistry Final Review
• What is the formula for a
compound made of calcium and
fluorine?
– CaF2
• Name the compound – Cu3(PO4)2
• Copper (II) phosphate
• Cupric phosphate
• Ionic bonds involve ______ of
electrons.
• Gain or loss
• The Octet Rule states that
elements desire to have ____.
– 8 electrons in outer shell/energy
level
• In a Lewis structure, the
_______ electrons are shown.
– Valence
• There are 2 types of covalent
bonds. What are they?
– Polar and nonpolar covalent
• What is the oxidation number
(or charge) of nitrogen in most
compound?
– -3
• The numbers that appear in
front of formulas are called
_________.
– coeficients
• Avogadro’s number is
________.
– 6.022 *1023
• A balanced chemical equation
means __________________.
– Equal numbers of each element
on both sides of equation
• A solid compound produced in a
reaction is called a
_________.
– percipitate
• A reaction in which 2
substances combine to form 1
new substance is called
______.
• synthesis
• A reaction in which one element
replaces a similar element is
called _________.
– Single displacement
• A limiting reactant is the
reactant which _________.
– Dictates how much of each
product can be produced
• How many valance electrons
does aluminum have?
–3
• VSEPR theory is used to
predict the _______ of
molecules.
• shape
• What are diatomic molecules?
– Have a subscript of 2
• Molar mass is _________ and
the units are _______.
– Mass of 1 mole of a compound
– Grams/mole
• Bond character is indicated by
_________.
• A difference in
electronegativity