chemical reactions project

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Across
  1. 2. a substance formed when two or more elements chemically combine in fixed proportions
  2. 3. Element an element that naturally exists as molecules composed of two atoms bonded together
  3. 5. Replacement Two reacting compounds switch their “partners”
  4. 8. (or Combination)Two or more elements COMBINE to create ONE PRODUCT.
  5. 9. when electrons are transferred from one atom to another, resulting in the formation of positive and negative ions.
  6. 10. an electrically charged particle formed when an atom gains or loses electrons
  7. 12. a substance that takes part in a chemical reaction, undergoing a change in composition.
  8. 13. One reactant breaks down into multiple, simpler products
Down
  1. 1. Any hydrocarbon (CxHy or CxHyOz) reacting with oxygen releases heat, carbon dioxide, and water
  2. 4. A coefficient is a number placed in front of a chemical formula in a balanced chemical equation
  3. 6. a small number written to the right and slightly below a chemical symbol. It indicates the number of atoms of an element in a molecule
  4. 7. when atoms share electrons. It typically involves nonmetals.
  5. 8. Replacement a singular element switches places with another element that is in a compound
  6. 11. a substance that is formed as a result of a chemical reaction.