Law of Conservation of Mass

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Presentation transcript:

Law of Conservation of Mass

Set up your notebook Turn to p. 21

Warm Up- p.21 In the warm up section p. 21, answer the following: What is the difference between an endothermic and exothermic reaction? Give examples of both an endothermic and exothermic reaction. What happens to molecules during chemical reactions?

What do we know about chemical reactions? What do you know has to happen in a chemical reaction? What did you notice about the balloon’s mass before and after the balloon inflated? Why do you think there was minimal change?

How many reactants VS products

Law of Conservation of Mass The mass of the reactants equals the mass of the products

Balloon Blow Up Lab Why do you think that there was a change in mass from before and after balloon inflation? Human error, balloon hole

Teacher Demonstration Record the information on your Balloon Blow Up Lab in notability

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