Physical Science Pages Ms. Cilli December5, 2011 Physical Science Pages Ms. Cilli December5, 2011

What are the five main types of chemical reactions? Review them as we wait

Classify chemical reactions as synthesis Decomposition single-replacement double-replacement combustion reactions

Not all reactions are created equal!

Chemical Types of Reactions Synthesis Decomposition Single-replacement Double-replacement Combustion Synthesis Decomposition Single-replacement Double-replacement Combustion

BOR NOTES V1 Each group will be assigned a type of reaction You will answer the questions When all is done, we will come back to class and a group member will present the notes to the rest of the class

BOR NOTES V2 You will answer the questions Each person needs to answer ____ questions Save your work, these are the notes for today

A reaction where _________________________________ The reactants may be either ________ or ________ The _______ synthesized is always a ___________

A general reaction: Example:

Opposite of a _________ reaction A __________ breaks down into _________ The reactant must be a ___________ The products may be _______ or ________

A general reaction: Example:

A ________________ is a reaction in which _________ takes the ______ of ________ element General equation: Example:

Where two _______ compounds exchange ________ and form _____ new compounds General equation: A replaces ___ and C replaces ____

Example: Explain what is happening. What is replacing what?

A reaction where a _______ reacts rapidly with ___________ _____ and _____ are often produced _______ will always be a carbon-containing compound and oxygen Products will always be ________ and ________

General Equation: Example: What are the reactants in the example? Products?

Ger!!! L ose E lectrons O xidized Goes G ain E lectrons R educed Leo

On the next slide is four reactions ( you will need to answer one question) Classify them as synthesis, decomposition, single replacement, double replacement, or combustion. Call me in when you are done

Pb(NO 3 ) 2 + 2HCl  PbCl 2 + 2HNO 3 Type: ___________ 2C 2 H 6 + 7O 2  4CO 2 + 6H 2 O Type: ___________ Ca + 2HCl  CaCl 2 + H 2 Type: ___________ 2SO 2 + O 2  2SO 3 Type: ___________

Pb(NO 3 ) 2 + 2HCl  PbCl 2 + 2HNO 3 Type: Double Replacement 2C 2 H 6 + 7O 2  4CO 2 + 6H 2 O Type: Combustion Ca + 2HCl  CaCl 2 + H 2 Type: Single Replacement 2SO 2 + O 2  2SO 3 Type: Synthesis Pb(NO 3 ) 2 + 2HCl  PbCl 2 + 2HNO 3 Type: Double Replacement 2C 2 H 6 + 7O 2  4CO 2 + 6H 2 O Type: Combustion Ca + 2HCl  CaCl 2 + H 2 Type: Single Replacement 2SO 2 + O 2  2SO 3 Type: Synthesis

Which one is not a type of reaction? A.synthesis B.decomposition C.single-replacement D.double-replacement E.All are types of chemical reactions Which one is not a type of reaction? A.synthesis B.decomposition C.single-replacement D.double-replacement E.All are types of chemical reactions

Independent Work: – Read pages in Physical Science – Work on the study guide (details in Schoology) Homework: – Section 7.2 HW – Due Tuesday, December 6 th by 8PM