DECOMPOSITION+BerkoTuohey

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=__DECOMPOSITION__=

Definition: During decomposition, a single substance will be broken down into two or more simpler substances. Equation: AB => A + B

Example: Water is decomposed into dihydrogen reacting with dioxide. H20 => H2 + O2

There are two steps to changing a chemical sentence into an equation: 1. Change the symbol into the chemical name 2.Figure out the charge of each element.

After, simply balance the equation by inserting a table under the sentence to determine the amount of atoms for each element. Then, change the coefficients.

Example: H=Hydrogen 0=Oxygen Di=2

1. H20 => H2 + O2 2. This is a Covalent equation, therefore the written sentence already does the work so now all that needs to be done is to read the sentence equation and do what it tells you. H20 => H2 + 02

Now balance it. H2O => H 2 + O2 2 H 2 1 O 2 2H2O **=>** 2H 2 + O2

The equation is balanced and complete.