Types of Reactions

I am absent today due to unexpected illness.  Our Dry Ice Lab  is therefore postponed to Thursday.  Please open the windows and turn on the fans on low for ventilation.

Today, you will learn about the different types of reaction and review these types with the teacher.  

This is  a study guide and notes for different types of reactions   You will work on this today.  

Here are some practice problems  to work on today.     If you did not get the sheets in class you can do those problems to practice.  This material and the study guide questions will be on this friday's quiz. 

TEAMS ASSIGNMENT: 

For 10 marks, make a lego model of each type of reaction.  Label your lego reactions and photograph it with your maple leaf.    If you are working from home, use any material you have on hand to create the models.  

TEACHING NOTES:

First lets review the main types of reactions: 

Chemical reactions may be categorized as follows : 

1.     Synthesis

2.     Decomposition

3.     Single replacement

4.     Double replacement

5.     Combustion

       Cellular Respiration

6.     Oxidation of metals

A Synthesis reaction:

element     +   element    -->    compound

Decomposition reaction:

Compound    -->   element     +     element

Or

Compound --> smaller compound    +   element

DOUBLE REPLACEMENT


single replacement

IN ADDITION TO THE FOUR TYPES ABOVE, THERE ARE ALSO THREE MORE KINDS of reaction TO KNOW: 

Combustion:  combustion may happen to any *organic compound* meaning any compound made of carbon, hydrogen and/or oxygen...

Carbon based compound+ oxygen --> carbon dioxide + water

+ heat and light energy

Cell respiration looks like combustion,

BUT IT IS NOT. YOUR CELLS ARE NOT COMBUSTING.  The carbon based compound in this case is glucose, a simple sugar.

Glucose +   oxygen -->  carbon dioxide + water + energy for cell

Oxidation reaction

Metal +  oxygen   -->   metal oxide

ACID BASE REACTIONS ARE ALL NEUTRALIZATION REACTIONS

In summary....