ThursdayJanuary 27, 2011

(Activity Series; WS – Chemical Reactions and

Equations Part 4)

Bell RingerThursday, 1-27-11

Identify the products of the chemical reactions represented in the following equations, then

balance each equation.

2

2

Ca + Cl2 →

CuCl2 + Na2S →

Br2 + KI →

CaCl2

NaCl + CuS

KBr + I22

Announcements

Our test has been postponed until next

Wednesday.

Assignment Currently Open Date Issued Date Due

WS: Chemical Reactions and EquationsPart 1 1/19 1/26

WS: Word Equations and Formula Equations 1/20 1/27

Quiz: Word Equations and Formula Equations 1/21 1/21

WS: Chemical Reactions and EquationsPart 2 1/24 1/28

WS: Chemical Reactions and EquationsPart 3 1/25 1/31

Activity SeriesThe ability of an element to react is

called the element’s activity.An activity series is a list of elements organized according to the ease with which the elements undergo certain

chemical reactions.For metals, greater activity means a greater ease of loss of electrons, to

form positive ions.For nonmetals, greater activity means a greater ease of gain of electrons, to

form negative ions.

Activity SeriesThe order in which the elements are listed in an activity series is usually determined

by single-replacement reactions.

The most active element, placed at the top in the series, can replace each of the

elements below it from a compound in a single-replacement reaction.

An element farther down can replace any element below it but not any above it.

Activity series are used to help predict whether certain chemical reactions will

occur.

Activity Series

Activity SeriesQuestion

How is the activity series useful in predicting chemical behavior?

It helps predict whether a chemical reaction will occur and

what the product(s) of the reaction will be.

WorksheetChemical Reactions

and Equations Part 4