What Happens When Chemicals Are Put Together?
What Happens When Fuels Burn?
I can…
 state that burning is called combustion
 write the reactants and products for a complete combustion reaction of a hydrocarbon fuel
 balance combustion equations
 include “heat” as a product of combustion
How Do We Symbolize A Chemical Reaction?
I can…
 define and give examples of “reactants,” “products,” and “coefficients”
 explain the difference between a chemical reaction and a chemical equation
 write a chemical equation given a word equation for a chemical reaction
 balance chemical equations making certain that each side of the equation has the same number
and kind of atoms
 explain that chemical equations are balanced because the number and kind of atoms do not change
during a chemical reaction, they are merely rearranged. Mass is conserved.
Can We Classify Reactions?
I can…
 state four types of chemical reactions (besides combustion) and show their patterns:
XY + AB → XB + AY
XY + A → AY + X
X + Y → XY
XY → X + Y
 match actual chemical equations to these four types and combustion
 state that active metals and acids form H gas
 define “precipitate” as a solid product in a double replacement reaction
2
What Are Ionic Compounds Made Of?
I can…
 define an ion as an atom or group of atoms with a charge
 state that a positive ion results when an atom loses electrons while a negative ion results when an
atom gains electrons
 memorize the common ions so I can give the symbol and charge when given the name and vice
versa
 state the charges of some ions because of their position on the periodic table
 write an ionic compound from any positive and negative ion
 use parentheses appropriately when writing compound that involve polyatomic ions
 use the terms “anion” for a negative ion and “cation” for a positive ion
Are All Compounds Ionic?
I can…
categorize a substance as ionic or covalent.
recognize molecular compounds formed between two non-metals
 name molecular compounds using the prefixes mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-,
nona-, and deca-, etc.
name an ionic compound and write the formula (don’t forget to balance the charges)
 recognize acids as ionic compounds where the positive ion is H+
 name acids according to the ending of the negative ion
 add “ur” or “or” when sulfur or phosphorus are part of the ion
ending
ide
acid name
example
ite
ate
How Do Atoms Stick Together? (Bonding)
I can…
 name the three kinds of bonds:
 describe each kind of bonding:



 state the kind of bond that will form between any two atoms
metal/nonmetal
metal/metal
 use electronegativity difference to predict the bond type
nonmetal/nonmetal
What Substances Use These Bonds?
I can…
 give examples of the three kinds of substances:
Ionic
Covalent
Metallic
 state that all solids have a “crystal lattice” and can state what makes up the points of the crystal
lattice for each type of substance.
 state the properties of a metal (malleable, ductile, shiny, good conductor of heat & electricity) and
explain them in terms of metallic bonding.
 state the properties of an ionic solid [brittle, cubic, good conductor of electricity as (l) or (aq)] and
explain them in terms of ionic bonding.
How Do We Symbolize These Bonds?
I can…
 write the Lewis symbol for any element or ion.
 show a covalent bond as a pair of electrons being shared between two atoms. (H:H)
 draw the Lewis structure for a simple molecule with a single, double, or triple bond.
 recognize a Lewis structure that has the correct number of valence electrons and follows the “octet
rule”.
 Recognize a Lewis structure that has the correct number of valence electrons and does not follow
the “octet rule” has an expanded valence
 Identify the areas of electron density on the central atom
 Transform a Lewis structure into the correct VSEPR shape
 State the electronic structure and molecular shape
 Recognize whether a bond is polar or non polar
 Label a structure polar or non polar based on the polarity of the bond and the structure of the
molecule
 Identify whether or not the substance is polar or non polar based on the molecular structure
o Label dipoles
What Can be Done With a Formula
I can …
 Calculate the mass of a molecule given its formula.
 State the # and kind of atoms in formulas using parentheses [ex., Ca(NO )
 List the seven diatomic elements.
 Calculate the % composition (by mass) given the percent composition
3 2
 CaN2O6]
 Calculate the empirical formula from percent composition data.
 Calculate the molecular formula given the empirical formula and molar mass of the molecular.
 Distinguish between empirical and molecular formula
What Is Stoichiometry?
I can…
 identify the limiting reactant (the reactant that runs out first) when amounts of two reactants are
mixed
 solve limiting reactant problems in which two given values are supplied
 determine the percent yield of a substance after determining the theoretical yield.