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The Law of Conservation of Matter: A Rule We Cannot Break

Section 3.5 Enjoy

Armani Thomas

on 20 September 2012

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Transcript of The Law of Conservation of Matter: A Rule We Cannot Break

By: Armani Thomas
Raquel Perez
Mckenzie Chapter 3
Section 5 The law of conservation of matter states that matter can not be created nor destroyed. Meaning there is no "away" as in throwing "away" .
When a physical/chemical change occurs no atoms are created or destroyed they are only rearranged ! Obey the Law In order to verify that no atoms are created/destroyed chemical equations are used as an accounting system. When equation is balanced the law of conservation is proven & balanced . Prove It ! As previously stated when a physical or chemical change occurs no atoms are created/destroyed. Change is Good In a physical change it's chemical composition is not changed. Ex: Cutting up aluminum foil into small pieces Lets Get Physical Anyone ? Definition of a chemical change The law of conservation makes it clear that we will always produce some type of pollutants. However, there is an abundant of things to produce less and clean up what we produce. Pollutants chemical nature
concentration (usually expressed at ppm)
persistence (measure of how long the pollutant stays in the environment in which it is released) More on Pollution.. Nonpersistant pollutants also known as degradable are broken down completely or reduced to acceptable levels by natural, physical, or biological processes. Let's be Persistent Persistent or non degradable pollutants are chemicals that natural processes cannot break down. Persistent Pollutants 1. Rusting pipe is a ______ change Q & A Define law of conservation of matter Q & A What verifies the law of conservation of matter? THE END
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