morgans crossword puzzle

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Across
  1. 4. when two substances combined and create a new one
  2. 6. the amount of space a object takes up
  3. 9. the quantity of matter within a given object
  4. 12. the ability to do work
  5. 13. a chemical reaction witch are formed due to a chemical reaction
  6. 14. a form of energy that is transfer between two or more substances with different temp
  7. 16. the smallest part of a substance
  8. 17. chemical reaction when they absorb heat energy from there surroundings
Down
  1. 1. anything that takes up space or can be weighed
  2. 2. a substance that speeds up a chemical reaction
  3. 3. a link between atoms and molecules
  4. 5. a substance made from two or more different elements
  5. 7. releases heat cause the immediate surroundings to rise
  6. 8. a substance that cant be broken down
  7. 10. the starting materials in a reaction that undergo a chemical change
  8. 11. a material composed of two or more substance
  9. 13. a substance they can be observed or measured without changing idenity
  10. 15. the action or property of molecules