Science :thumbsup:

Edit Answers
12345678910
Across
  1. 2. Process that changes one set of chemicals into other chemicals
  2. 3. A system in which matter can escape.
  3. 6. Anything that has mass and takes up space
  4. 7. Substances Present before chemical equation
  5. 8. Shows no mass was created or destroyed during an equation
  6. 10. A system in which no matter can enter or exit
Down
  1. 1. matter cannot be created or destroyed only changed forms
  2. 2. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactan
  3. 4. A number written slightly below and to the right of a symbol to show how many atoms of an element are in a compound
  4. 5. A representation of a chem reaction that uses symbols
  5. 9. substance produced after chemical equation