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Topic 2: Chemical Reactions
Lesson 3: Modeling chemical reactions.
Review your book page 93, 94 and balance the following chemical equations.
1 ) H2O H2 + O2
2) H2O + K2O  KOH
3) O2 + N2  N2O
4) H2O + Na H2 + NaOH
5) Na + I2 NaI
6) Cl2 + KI  KCl + I2
7) O2 + CH4  H2O + CO2
8) HCl + K3PO4  H3PO4 + KCl