Describing+Chemical+Reactions+2


 * DE SC RI BI NG CH EM IC AL  RE AC TI ON S! **

=__Table of Contents__ = 1) Chemical Reactions 2) Balancing Chemical Equations 3) What are Chemical Equations? 4) Xtranormal Video 5) Toondoo 

<span style="color: #f22c2c; font-family: 'Comic Sans MS',cursive; font-size: 169%;">**__Chemical Reactions__** Iron and sulfur can react to form iron sulfide. Conservation of mass states that during a chemical reaction, matter is not created or destoryed. All the atoms present at the start of the reaction are present at the end. In a chemical reaction, the atoms are switched around to give outcomes with different chemical and physical properties. For example, solutions of lead nitrate and potassium iodide react to produce a solid precipitate. Many reactions are reversible. Brown nitrogen dioxide gas decomposes at high temperatures to form a colorless mixture of oxygen and nitrogen monoxide. (Challoner 18)

<span style="color: #ff9400; font-family: 'Comic Sans MS',cursive; font-size: 182%;">__Balancing Chemical Equations__ ** To decribe a reaction accurately, a chemical equation must show the same number of each type of atom on both sides of the equation.
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The four steps to balancing equations are: 1. Write the equation 2. Count the atoms 3. Use coeficients to balance the atoms 4. Look back and check

I n this example it shows you how to balance an equation. media type="custom" key="6209555" <span style="color: #58ee17; font-family: 'Comic Sans MS',cursive; font-size: 210%;"> __What are Chemical Equations?__ ** A chemical equation is a short, easy way to show a chemical reaction, using symbols instead of words. A chemical equation tells you the substances you start with in a reaction and the substances you get at the end. The ones you have at the beginning are the REACTANTS. When the reaction is complete, you have new substances called the products. Chemical equations use chemical formulas and other symbols instead of words to summarize a reaction.

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//<span style="font-family: 'Comic Sans MS',cursive; font-size: 140%;">** __RESOURCES:__ ** //

"The Chemical Equation." The Chemical Equation . Web. 16 May 2010. <http://www.chem.ufl.edu/~itl/2045/lectures/lec_3.html>.
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