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Chemical Reactions Part II 3. Single Displacement Reactions -reaction of an element and a compound to produce a new compound ex. AB + C --> AC + B solid zinc in lead (II nitrate solution will give you solid lead and aqueous zinc nitrate Zn(s) + Ph(NO3)2(aq) --> Zn(NO3)2 (aq) 4. Double Displacement Reactions - a chemical reaction in which two compounds in aqueous solution react to form two new copounds ex. AB + CD --> AD + CB aqueous silver nitrate + aqueous calcium chloride --> solid silver chromate + aqueous calcium nitrate 2 AgNO3(aq) + CaCl2(aq) --> 2 AgCl(s) + Ca(NO3)2 (aq) precipitate -a solid that forms as a result of a chemical reaction between two aqueous solutions solubility rules BUT…how do we know when something will react with something else? metal activity series UNIT 1 PORTFOLIO Predicting The Products For each problem presented below, determine the chemical formula for each reactant, predict the products and then balance the chemical equation. Include the state of each reactant and each product. 1. ammonium hydroxide (aq) + hydrochloric acid (aq) 2. potassium chromate (aq) + barium nitrate (aq) 3. copper metal + silver nitrate in solution 4. aluminum chloride and zinc sulphate are dissolved in water to give … 5. ammonia gas + oxygen gas react to give nitrogen (II) oxide and …