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5 Written questions

5 Matching questions

  1. law of conservation of energy
  2. mixture
  3. heat of fusion
  4. element
  5. phase
  1. a the amount of energy required to change 1 g of a solid to a liquid
  2. b a pure substance made of only one kind of atom
  3. c any part of a system with uniform composition and properties; a state
  4. d A combination of two or more substances that are not chemically combined
  5. e the law that states that energy cannot be created or destroyed but can be changed from one form to another

5 Multiple choice questions

  1. The quantity of matter contained in a body; measured in grams
  2. uniform; of the same kind
  3. the SI unit of energy
  4. measure of space that matter takes up; mL, cm3
  5. a quality or condition of a substance that can be observed or measured without changing the substance's composition

5 True/False questions

  1. chemical propertiesa quality or condition of a substance that can be observed or measured without changing the substance's composition

          

  2. endothermic reactiona reaction that releases energy in the form of heat

          

  3. law of conservation of massMass is neither destroyed nor created during ordinary chemical reactions or physical changes

          

  4. physical changea change that produces matter with a different composition than the original matter

          

  5. densitycapacity to do work or cause change