Endothermic and Exothermic

Information Gap Worksheet

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Country Flag United Kingdom

Date Shared: 6 October 2018

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Complete your worksheet and then check your answers against those of your partners.

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During a chemical reaction what is always transferred? Described what is meant by the "conservation of energy" How is energy transferred in chemical reactions? What name is given to reactions that transfer energy to the surroundings? How do you know that an exothermic reaction has taken place? What is the name given to chemical reactions that transfer energy from the surroundings to the reactants? Name 2 examples of an exothermic reaction. Name 2 examples of an endothermic reaction What is meant by the term "thermal decomposition"? If a reaction gives out energy to the surroundings, what happens to the energy of the products?

Energy In a chemical reaction energy cannot be created or destroyed. Through the breaking of chemical bonds in the reactants and creating new bonds in the products Exothermic Through an increase in temperature from the reactants to the products.

Endothermic oxidation, combustion, respiration or neutralisation photosynthesis, sodium hydrogen-carbonate and citric acid or thermal decomposition To break down with heat. The energy of the products will be less.

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6 October 2018

heelis Author Country Flag United Kingdom

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