1. Balancing Reactions
Balancing Act

2. STIPULATIONS Atoms can not be CREATED or DESTROYED just REARRANGED
Why rxns need to be balanced.
When balancing, only change the COEFFICENTS not the SUBSCRIPTS.

3. Steps Write correct chemical formulas.
Count # of atoms for each element.
Balance each element or polyatomic ion.
REDUCE if possible.

4. Mg O2  MgO
Mg = Mg= O = O=

5. Cu2O + C  Cu CO2
Cu = Cu=
O= O=
C= C=

6. Now, lets look at you 4x4 WS
Balancing Chemical Equation

7. N H2  NH3
N= N=
H= H=

8. You try…2

9. ___KClO3  ____KCl + ____O2

10. You try.. 5

11. __AgNO3 + __MgCl2 __AgCl + __Mg(NO3)2

12. Now, try a harder one in your notebook

13. C2H O2  CO H2O
C= C=
H= H=
O= O=