Chapter 8 Chemical Reactions and Equations
8.1 Describing Chemical Reactions
retain original properties, characteristics, etc
appearance may change but not the properties
produces one or more new substances with new prope
Worksheet Answers - Physical and Chemical Changes
1. Label each process as a physical or chemical change:
a. perfume evaporating on your skin - physical
b. butter melting - physical
c. wood rotting - chemical
d. charcoal heating a grill - see below
Chemical Bonding Worksheet #1 (Ionic Bonding)
1. Write the noble gas electron configuration for the following:
a. nitrogen atom
b. sodium atom
c. sulfur atom
d. bromine atom
2. How many valance electrons do the above atoms have? Label that next to each co
Chemistry of Life Review Worksheet
Define the following:
Label this atom:
Name the three components of atoms and give their charge
_ - _
_ - _
_ - _
List the major elements and their chemical symbol found in or r
Interpreting Solubility Curves
Solubility is a measure of the amount of solute that will dissolve in a given
amount of solvent usually water. A solubility curve shows how much solute
dissolves in a given volume of a solvent at a given temperature. Ho
Teacher Guide: pH Analysis
Use pH paper to find the pH of a variety of substances.
Describe some of the qualities of acids and bases.
acid, acidic, alkaline, base, indicator, neutral, pH
ty as the temperature
y in solubility as the
6. Which two substances have the same solubility at 71C?
lg of water to dissolve 70 ; d"
1. answer the following questio'ns.
2. Which substance appears to decrease in solubility as the tempera
Matter and Measurement
Show your work for each problem
1. The mass of a paperclip is about 0525 grams.
What is the mass of this paperclip in kg?
(Report your answer in scientic notation).
0595 x We; onweaske
2. A liquid has a d
South Pasadena - AP Chemistry
Period _. Date / /
5 - Reactions In Aqueous Solution
1. On the basis of the solubility rules, which of
the following is insoluble? _
a) K20 d) (NH4)2SO4
b) N32CO3 6) Ba(C2H302)2W
In a double replacement reaction,
ran of antacid tablets use almninum hydroxide to neutralize excess acid.
' ' A1(OH)3(s) + 3 HCl(aq) + A1C13(aq) + 3 H20(l)
larmasses 78.01 36.46 133.4 18.02]
t . :.j_s.'f.t1ty'ofI-'IC1, in grams, can a tablet with 0.750 g of Al(OH)3 consume? What quantit
Activity/Lab Answers: Identifying Elements, Compounds and Mixtures
1. Draw the flow-chart on page 38 Addison Wesley Chemistry on this sheet below
MatterSubstance with definite composition or mixtures with variable composition
Substance may be an element o
Naming Ionic Compounds Answer Key
Give the name of the following ionic compounds:
iron (II) chloride
iron (III) chloride
Homogeneous or Heterogeneous
Mixture or Pure Substance
Identify each material as either a mixture or pure substance.
If the material is a mixture, identify it as either homogeneous or
If the material is a pure
pm 7 9
mm? the mIssmg product or reactant In the following nuclear reactlons Determine the 13198
. m reactian (q em15510n Bemissicn y emISSIen positron emISSIon, artlf'Cla'
nsmutation, ssiori or human) described
19K+1e+QCq .' 1.) aw
23994PU 9 42 H
Worksheet #2: Physical/Chemical
Fill in the Blanks
properties can be observed without chemically changing matter.
properties describe how a substance interacts with other