Chemistry Vocabulary

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Across
  1. 3. describes a chemical reaction by showing how atoms in the reactants are
  2. 6. substance formed as a result of a chemical reaction (right side)
  3. 8. a substance is evenly distributed (or dissolved) within a liquid, gas, or solid
  4. 9. a pure substance (same throughout) that is made up of one type of atom.
  5. 10. All compounds are molecules but not all molecules are compounds.
  6. 13. the starting materials found in a chemical equation(left side) that will react together
  7. 18. change in form or appearance but not chemical make-up
  8. 19. symbol a letter abbreviation of an element name; always starts with a capital letter
  9. 25. For Example, in the compound H 2 O there are 2 atoms of Hydrogen
  10. 26. group of atoms bonded together composed of a single element or a single
  11. 27. protons and neutrons and an electron cloud
  12. 29. mass stays the same during a reaction. The total mass of the
  13. 33. during a reaction a new substance is made when the atoms of the original
  14. 34. glucose (food)
Down
  1. 1. the smallest particle of matter that has distinct properties because of its nucleus which
  2. 2. energy using the energy from sunlight to convert carbon dioxide and water into oxygen
  3. 4. consists of multiple different substances that are not evenly
  4. 5. are rearranged to make something new (evidence: precipitate, energy change, gas,
  5. 7. each sample of the mixture will have the same proportion of components
  6. 11. so each sample of the mixture may have different proportions of components
  7. 12. a chart of all the known elements on Earth organized based on the physical
  8. 14. sometimes color)
  9. 15. a set of chemical symbols (letters) and subscripts (numbers) showing
  10. 16. matter is not created or destroyed just rearranged
  11. 17. elements are bonded together to form a molecule
  12. 20. bonded together. For Example H 2 O all water molecules are mode the same
  13. 21. consists of multiple different substances that are evenly distributed
  14. 22. The big number in front of a formula that indicates how many molecule groups.
  15. 23. the chemical process by which plants (and some bacteria) produce their own
  16. 24. to form new substances in the products
  17. 28. pure substance (same throughout) that is made up of two or more different
  18. 30. the small number behind the element indicates the number of atoms for that
  19. 31. chemical properties of each
  20. 32. is equal to the total mass of the products (the type and number of atoms stays the