PPT-Energy changes Exothermic reaction

s Examples respiration combustion oxidation neutralisation Energy exits reaction heats surroundings Thermometer readings rises Uses self heating can and hand warmers Energy changes. . vs. . Exothermic Reactions:. By: Crystal & Caitlin! :D . Endothermic:. Exothermic:. An Exothermic . reaction is the . combustion of Acetone peroxide. . . The Definitions. . Exothermic- . Which one is easier to make happen?. Building a sand castle?. Destroying a sand castle?. How about these?. Wrecking your snowman?. Building as snowman?. And these?. Making a cake?. Making a mess?. What does Baking a cake, building a snow man, or making a sand castle have in common?. Endothermic and Exothermic … 25. Draw 2 vocabulary boxes. EXOTHERMIC. A reaction that releases energy. Gets hotter. Can light up. Reactant energy < Product energy. Ex. Jellyfish, fireflies. Reactants products + energy.  . 60 grams . 75 grams . 135 grams . 270 grams . Exothermic . vs. Endothermic . Exothermic. Reaction that . transfers energy to the surroundings. More energy . is . released. when a bond . forms than is used to break bonds. Chapter 16 page 500. A. . ThermoChemistry. Introduction. Every chemical reaction causes a change in energy. Endothermic or exothermic. Thermochemistry – study of the transfer of energy as heat that happens during chemical reaction and physical changes. Learning Goal . Given the heat of reaction the rate of a reaction, calculate the loss or gain of heat for an exothermic or endothermic reaction.. Almost every chemical reaction involves the loss or gain of energy. When cold packs are activated, an endothermic reaction. Energy, Rates, and Equilibrium. Fundamentals of General, Organic, and Biological Chemistry. 7th Edition. Chapter 7 Lecture. © 2013 Pearson Education, Inc.. Julie Klare. Gwinnett Technical College. McMurry, Ballantine, Hoeger, Peterson. Oxidation Reactions. Exothermic vs Endothermic. Exothermic. Endothermic. A chemical reaction that gives off energy.. The reactants have more energy than is needed to form the products so they release it.. Topic 5.1. THERMOCHEMISTRY. The study of heat released or required by chemical reactions. Fuel is burnt to produce energy - combustion. CH. 4(g). 2O. 2(g). CO. 2(g) . 2H. 2. Agenda. :. Warm up. Intro to the world of chemistry – . Episode 13 – the driving forces of reactions . Notes – Energy changes and Reaction rates . Complete WS: Heat and endothermic / exothermic reactions . Step 1:. Energy must be . SUPPLIED. to break . bonds.. Step 2:. Energy is . RELEASED. when new bonds are . made.. A . reaction is . EXOTHERMIC. if more energy is RELEASED then . SUPPLIED (. hotter. Do now activity: . State what ‘conservation of mass’ means. GOOD PROGRESS:. Define the terms endothermic and exothermic. Give some examples of endothermic and exothermic reactions. OUTSTANDING PROGRESS:. Boiling water. Rusting. Evaporation . Decomposing . Baking. Freezing . Warm Up 8.1: Determine if the following is chemical or physical- . answers. Boiling water-. physical. Rusting. - chemical. Evaporation -. Methane, CH. 4. , burns in air.. Chlorine gas reacts with sodium bromide.. Energy and Reactions. Context clues in given scenarios or observations in experimentation convey energy transfer in reactions. .