1. Predicting Products Synthesis – Combine the elements together. Check subscripts with oxidation numbers. – Combine two oxide compounds into one large oxide compound. Decomposition – One reactant breaks into two parts.

2. Predicting Products Combustion – Start with a hydrocarbon and oxygen. – The products will be carbon dioxide and water. Single Replacement – Metal replace metals. Check subscripts with oxidation numbers. – Nonmetal replace nonmetals. Check subscripts with oxidation numbers. – Need to check activity series

3. Activity Series – Table 4, pg 281 or 832 for more complete table A series of elements that have similar properties and that are arranged in decreasing order of chemical activity However, reaction will only occur if the more reactive material is added to a less reactive material. A more reactive material displaces a less reactive material. The more reactive the material, the higher on the activity series it will be.

4. Predicting Products Double replacement – First elements switch. Check subscripts with oxidation numbers. – Neutralization falls under this category. In the reaction, it makes the product liquid water and a soluble salt. – Need to check solubility chart

5. Solubility Chart Helps predicts if a double replacement reaction will occur. If an insoluble product is produced, the reaction will take place. These can come in the form of a precipitate, a gas or sometime a liquid. This chart helps to predict if a precipitate (insoluble solid) forms

6. Zn + O 2  F 2 + Mg  AgCl  HgO  C 3 H 8 + O 2  HCl + NaOH  ZnO MgF 2 Ag + Cl 2 Hg + O 2 CO 2 + H 2 O NaCl + H 2 O 22 2 2 22 345 Synthesis Decomposition Combustion Neutralization

7. Examples – Predict if the following will occur. If they will, predict the result: NaI + Cl 2  AuCl 3 (aq) + Ag(s)  AgNO 3 (aq)+ CaCl 2 (aq)  AgNO 3 (aq) + NaCl (aq)  Lead (II) nitrate + sodium chloride  Cl is higher than I  yes Ag is higher than Au  yes Ag is lower than Ca  no AgCl is not soluble  yes PbCl 2 is not soluble  yes NaCl + I 2 AgCl + Au No reaction AgCl (s) + NaNO 3 (aq) PbCl 2 (s) + NaNO 3 (aq)Pb(NO 3 ) 2 (aq) + NaCl (aq) 