|
Competencies
|
Explain how the basic laws of
matter (law of conservation of
mass, law of constant composition,
law of multiple proportion) led to
the formulation of dalton’s atomic
theory
Describe dalton’s atomic theory
Differentiate among atomic
number, mass number, and
isotopes, and which of these
distinguishes one element from
another
Write isotopic symbols
Recognize common isotopes and
their uses.
Differentiate among atoms,
molecules, ions and give examples
Represent compounds using
chemical formulas, structural
formulas and models
Give the similarities and differences
between the empirical formula and
molecular formula of a compound
Name compounds given their
formula and write formula given
the name of the compound
(lab) practice chemical
nomenclature: writing the chemical
formulas of ionic compounds;
naming ionic compounds from
formulas
Relate the stability of noble gases
to their electron configuration
State the octet rule
Relate the stability of noble gases
to their electron configuration
State the octet rule
Determine the charge of the ions
formed by the representative
elements and relate this to their
ionization energy or electron
affinity, valence electron
configuration and position in the
periodic table
Draw the lewis structure of ions
Predict the formula of the ionic
compound formed by a metal and
non-metal among the
representative elements
Lewis structure of ionic compounds
List the properties of ionic
compounds and explain these
properties in terms of their
structure
(lab) perform exercises on
writing lewis structures of
ions/ionic compounds and
molecules
Describe covalent bonding in terms
of electron sharing
Apply the octet rule in the
formation of molecular covalent
compounds
Write the formula of molecular
compounds formed by the
nonmetallic elements of the
representative block
Draw lewis structure of molecular
covalent compounds
Explain the properties of covalent
molecular compounds in terms of
their structure.
Determine the polarity of a bond
based on the electronegativities of
the atoms forming the bond
Describe the geometry of simple
compounds
17. (lab) determine and/or observe
evidence of molecular polarity
Describe how various factors
influence the rate of a reaction
Write the mathematical
relationship between the rate of
a reaction, rate constant, and
concentration of the reactants
Differentiate zero, first-, and
second-order reactions
Write the rate law for first-order
reaction
Discuss the effect of reactant
concentration on the half-time
of a first-order reaction
Explain the effect of
temperature on the rate of a reaction
Explain reactions qualitatively in
terms of molecular collisions
Explain activation energy and
how a catalyst affects the
reaction rate
Cite and differentiate the types
of catalysts
(lab)determine the effect of
various factors on the rate of a
reaction
Describe reversible reactions
Explain chemical equilibrium in
terms of the reaction rates of the
forward and the reverse reaction
Write expressions for the reaction
quotient/equilibrium constants
Explain the significance of the
value of the equilibrium constant.
Calculate equilibrium constant and
the pressure or concentration of
reactants or products in an
equilibrium mixture
State the le chatelier’s principle
and apply it qualitatively to
describe the effect of changes in
pressure, concentration and
temperature on a system at
equilibrium
(lab) describe the behavior of a
reaction mixture when the
following takes place:
a. change in concentration of
reactants or products
b. change in temperature
(lab) perform calculations
involving equilibrium of gaseous
reactions
Define bronsted acids and bases
Discuss the acid-base property of
water
Define ph
Calculate ph from the
concentration of hydrogen ion or
hydroxide ions in aqueous
solutions
Determine the relative strength of
an acid or a base, from the value
of the ionization constant of a
weak acid or base
Determine the ph of a solution of
weak acid or weak base
Explain the common ion effect
Describe how a buffer solution
maintains its ph
Calculate the ph of a buffer
solution using the henderson-
hasselbalch equation
Explain and apply the solubility
product constant to predict the
solubility of salts
Describe the common ion effect on
the solubility of a precipitate
Explain the effect of ph on the
solubility of a precipitate
(lab) determine the ph of
solutions of a weak acid at
different concentrations and in the
presence of its salt
(lab)determine the behavior of
the ph of buffered solutions upon
the addition of a small amount of
acid and base
|
