1)Synthesis


 * Synthesis**
 * Definition-** is when two or more substances are combined to produce a single, more complex substance.
 * Generic Formula-** A+B-->AB

In order to change this sentance into a equation you simply just take the symbols of the elements and right them down and when it says and you make a + sign and when it says reacts with or forms you just make a -->, which is like a equal sign. Mg+O2-->MgO
 * Example Equation-** When Mg combines with Oxygen it forms Magnesium Oxide.

BUT, the equation is not balanced so you have to balance it. This means you have to add a 2 to the Mg which is on the product side of the equation, you add the two because it complements the Oxygen and makes it become O2 so it is balanced with the other oxygen on the reaction side of the equation. Then since you put a 2 in front of the Mg we have to put another 2 on the Mg on the other side because it has to be balanced.
 * Correct Equation:** 2Mg+02-->2MgO