Chemistry!

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Across
  1. 4. A chemical _________ is like the recipe, telling how many of each atom is in a molecule
  2. 7. Ni
  3. 8. Co
  4. 9. When this kind of change occurs, at least one new substance is formed
  5. 10. The small number that follows an element symbol, telling how many atoms there are in that molecule
  6. 12. two or more atoms bonded together
  7. 14. He
  8. 15. More than one substance like trail mix or all the dry ingredients of a cake
  9. 16. building blocks of all matter or smallest piece of one element
Down
  1. 1. Li
  2. 2. Be
  3. 3. Mg
  4. 5. A mixture where one substance is completely dissolved into a liquid
  5. 6. The number in front of a chemical formula that tells you how many molecules there are
  6. 11. Properties like color, phase, or shape that describe the appearance of an element or molecule
  7. 13. all the atoms of a substance are the same