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Unit 3 - Chemical Reaction Notes and Vocabulary Let’s define the follow key terms Chemical reaction reactant product chemical equation Combustion reaction synthesis reaction decomposition reaction replacement reaction Single-replacement reaction double- law of conservation of mass Enduring Understandings During a chemical change matter can neither be created or destroyed. A chemical reaction is a process that involves one or more reactants changing into one or more products. Chemical equations describe the change of reactants to products and obey the law of conservation of mass. Coefficients represent how many units of each substance are involved in a chemical reaction. A chemical equation is a way to express relative amounts of reactants and products Types of reactions include synthesis, decomposition, singlereplacement, double-replacement, and combustion. Outline Types of reactions Synthesis: _______________ become _____________________!!! A + B AB Teacher Example/Analogy _________ Decomposition: _____________ becomes ____________________!!! AB A + B Teacher Example/Analogy _________ Single-replacement A + BC AC + B Teacher Example/Analogy _________ Double-replacement AB + CD AD + CB Teacher Example/Analogy _________ Combustion o A reaction in which a compound (often carbon) reacts with oxygen CH + O 4 2 CO + H O 2 2 Teacher Example/Analogy _________ We will label each part of the reaction together A ___________________________ B_____________________________ C____________________________ D_____________________________ E______________________________ Label the type of reaction for the following a. Type of Reaction ________________ P4 + O2 --> P2O3 b. Type of Reaction ________________ KClO3 KCl + O2 c. Type of Reaction ________________ AlBr3 + K2S --> KBr + Al2S3 d. Type of Reaction ________________ NaF + FeCl3 NaCl + FeF3. e. Type of Reaction ________________ AlCl3 Al + Cl2 f. Type of Reaction ________________ HCl + Zn ZnCl2 + H2 g. Type of Reaction ________________ AgCl + NaBr NaCl + AgBr h. Type of Reaction ________________ Mg + O2 MgO Unit 3 Vocabulary Practice 1. Using notes, this paper, flow chart, and your book do the following. Instructions: Write each definition in your own words and complete a drawing that helps describe each word. They can be completed virtual or on your own paper. a. Synthesis reaction b. Decomposition reaction c. Single displacement reaction d. Double displacement reaction e. Chemical Equation f. Subscript g. Reactants h. Products i. Element j. Mixtures k. Compounds l. Law of Conservation of Mass m. Atoms n. Physical Change o. Chemical Change -