S.+Lindo+Decompostion

//Calcium Carbonate// A. Decomposition Ex. Ca (Co3)2  à CaO +CO2 Ex. Ca (CO3)2  à CaO + CO2 equation **is not balanced** Ca+2/-2(CO3)-2/-2  à Ca+2/-2O-2/+2 + CO2 {you just do what it says no need to do the switchero with CO2} **the 2’s cancel out when you do the switchero** CaCO3  à CaO + CO2 **the equation is balanced**
 * B.  ** One unique molecule breaks down into two or more parts
 * C.  ** AB   à  A + B
 * D.  ** Calcium carbonate decompose to produce calcium oxide and carbon dioxide
 * E.  ** 1st thing you need to do is write all the symbols for all the elements. 2nd thing you need to do is find the charges of each element. 3rd thing you need to do is do the switchero method which is when you switch the charges between elements. 4th thing you need to do is reduce so that your charges are whole numbers. HINT: Carbonate has a charge of -2, (Co3)-2 and dioxide has a charge of -2, O2
 * F.  ** The point of balancing an equation is that each side of the equation is equal. 1st thing you do is make sure that you change your sentence into a formula. 2nd thing you do is make a chart that shows all your elements. On the left and right hand side of each of those elements you’re going to write how much of one element is before and after the arrow. If your equation is not balanced you’re going to start plugging in coefficients or numbers before your elements until their balanced.

S.Lindo Reaction Teaching Wiki 2008