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Science
Chemistry
>> A. Definitions
>> B. Properties
>> C. Mixtures
>> D. Changes
>> E. Metals
>> F. Compounds
>> G. Compounds
>> H. Hydrocarbons
>> I. Law of Conservation of Mass
>> J. Types of Reactions
>> K. Acids/Bases
>> L. Rates of Reactions
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I.     Answer the following:

        1. What is the Law of Conservation of Mass?
        2. Describe what happens in an exothermic reaction and an endothermic reaction.
        3. What type of reaction is a change in state considered?

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