PREDICTING PRODUCTS

Predicting Products You MUST know how to write formulas for ionic compounds: ex) magnesium & aluminum

Predicting Products You MUST know how to write formulas for ionic compounds: ex) calcium & oxygen

Predicting Products You MUST remember the diatomic elements are: Br, I, N, Cl, H, O, F For example, Hydrogen by itself is always H 2

Synthesis Reactions Identified by two reactants and one product 1. Mg + O 2 → 2. Ca + N 2 → 3. Al + O 2 →

Decomposition Reactions Identified as one reactant forming 2 or more products 1. NaCl → 2. PbO 2 → 3. Al 2 O 3 →

Single Replacement The Lone metal on the reactants side must be MORE reactive than the metal in the ionic compound. ◦ If not, no reaction occurs ◦ How can we tell reactivity? Use the Activity Series provided. Elements close to top are the most reactive.

Single Replacement Reactions 1. K + MgS → 2. Ag + MgBr 2 → 3. Mg + CuS →

Double Replacement Reactions Identified by two ionic compounds as reactants. Switch the METALS. Don’t forget charges! ◦ Metals (cations) are ALWAYS written first!!!!! ◦ A precipitate will form.

Double Replacement Reactions 1. CaBr 2 + NaNO 3 → 2. KCO 3 + Mg(NO 3 ) 2 → 3. CaI 2 + AlCl 3 →