Balancing+Equations

     Balancing Equations


To balance an equation you first write the skeleton equation, by placing the formulas of the reactants on the left and the formulas for the products on the right with a yield sign (→) in between. If two or more reactants are involved you separate them with a plus (+) sign. Then determine the number of atoms of each element in the reactants and products.  Count the __polyatomic ion__ (**a tightly bound group of atoms that behaves as a unit and has a positive or negative charge**) as a single unit if it appears unchanged on both sides of the equation. Balance the elements one at a time by using coefficients. Then make sure that they are equal on both sides of the equation and that the coefficients are in the lowest possible ratio.

A __chemical reaction__**is a change in which one or more reactants change ** **into one or more products.** Obvious changes are color,energy, and property. <span style="display: block; font-size: 220%; color: rgb(0, 255, 33); font-family: 'Arial Black',Gadget,sans-serif; background-color: rgb(0, 255, 231); text-align: center;"> <span style="color: rgb(0, 9, 255); font-family: 'Arial Black',Gadget,sans-serif;">An example would be when methane gas burns and combines with oxygen to form carbon dioxide and water.Another example is when iron turns to rust because of the presence of oxygen in the air. You can prove that a chemical reaction has taken place when one or more reactants change into one or more products.

Word Equations and Formula Equations are different from each other. Word equations: name of reactant 1 + name of reactant 2 → name of product 1 + name of product 2 + ...[in other words..the name of the reactant is written to the left of the arrow separated with a plus sign and the name of the products is written to the right of the arrow and separated with a plus sign.] The <span style="color: rgb(0, 0, 0);">**reactants** <span style="color: rgb(0, 255, 0);">are the substances with which you begin the reaction. The <span style="color: rgb(0, 0, 0);">**products** <span style="color: rgb(0, 255, 0);">are the substances made as a result of the reaction <span style="display: block; font-size: 220%; color: rgb(0, 255, 33); font-family: 'Arial Black',Gadget,sans-serif; background-color: rgb(0, 255, 231); text-align: center;"> <span style="color: rgb(0, 9, 255); font-family: 'Arial Black',Gadget,sans-serif;"><span style="color: rgb(0, 255, 0);"> hydrogen peroxide→water + oxygen Formula Equations can also be known as a chemical equation. A chemical equation is a representation of a chemical reaction; the formulas of the reactants are combined by an arrow with the formulas of the products. Fe+O2→Fe2O3 The arrows represent what is being produced, the plus sign separates the products,(s) means solid, (g) means gas,(l) means liquid, (aq) represents something being dissolved in water, an arrow with a triangle above it represents something being heated and an arrow with pt written over it indicates it is used as a catalyst. <span style="display: block; font-size: 220%; color: rgb(0, 255, 33); font-family: 'Arial Black',Gadget,sans-serif; background-color: rgb(121, 53, 53); text-align: center;"> <span style="color: rgb(0, 9, 255); font-family: 'Arial Black',Gadget,sans-serif;"> <span style="display: block; font-size: 220%; color: rgb(0, 255, 33); font-family: 'Arial Black',Gadget,sans-serif; background-color: rgb(121, 53, 53); text-align: center;"> <span style="color: rgb(0, 9, 255); font-family: 'Arial Black',Gadget,sans-serif;">

media type="custom" key="3694885" media type="custom" key="3706473" media type="custom" key="3712181" <span style="color: rgb(0, 0, 255);">**Play Me!** media type="custom" key="3706177" media type="custom" key="3771581" <span style="font-size: 160%; color: rgb(0, 204, 255); font-family: 'Arial Black',Gadget,sans-serif;">Its a wRAP! What's a chemical reaction? I can explain that in a chemical equation. It's just a representation Chemists use chemical equations it's a quick, short hand notation To convey as much information As possible about what happens in a chemical reaction.
 * Comic Strip on a Chemical Reaction[Iron + Oxygen→Iron(III)Oxide](rust)**
 * Videos on Balancing Equations**
 * <span style="color: rgb(0, 255, 231);">Quiz **