Unit 4 Chemical Systems and Equilibrium
Solubility Product of Calcium Hydroxide
1 a) Write the dissociation equation of calcium hydroxide.
b) Write the equilibrium expression for this equation.
c) If the hydroxide
Halogenoalkanes and Alcohols
Halogenoalkanes contain a halogen as the functional group R-Hal.
The first part of the name of an halogenoalkane gives the position and name of the
The second part of the name is based on the
Complete the diagram
Before A = laminar flow minimum of 2 continuous smooth
lines roughly parallel to wing surface which dont cross
After A = turbulent flow lines crossing, eddies, sudden
changes in direction, change in dir
1.6 Bonding Mark Scheme
Total Marks = 51
vibrate faster (1)
Or bigger amplitude or more
NOT start to vibrate or other type of motion esp. Translation
Na + Cl2 NaCl (1) or Na Cl
or 2 Na + Cl2 2 NaCl
If NA p
All types of chemical reaction involve changes in energy. When energy is emitted it can take a
number of forms, but the most common form is as heat energy.
Heat energy is called enthalpy. Enthalpy change is represented by the symbol H.
1.7 Introduction to Organic Chemistry
Total Marks = 75
Molecule/compound/consists/composed/made up of hydrogen and
carbon only (1)
C6H14 only (1)
Chemically similar / react in same way / same chemistry
Differ by CH2
.ttons keeps up with all the latest fashion trends. Buttons changes
l , 1th stock according to the latest trends. Also buttons is not only for
girl, it caters to everyone’s needs. Buttons sells clothes for men, women
and children. it even has a cl
SCH 4U Unit 4
Unit 5: Acids & Bases
Assignment Ka, Kb, Kw and pH
1. Given the following balanced ionization reactions for the following weak acids and bases, write the Ka
or Kb expressions for each.
ascorbic acid: HC6H7O6 (aq) H
LAB: INVESTIGATING CHEMICAL EQUILIBRIUM
IMPORTANT INTRODUCTORY COMMENTS
This lab investigation is concerned with observing the effect on various equilibria when a reactant or product
is added or removed or the temperature is changed. The following theoret