Chemical Reactions

Edit Answers
1234567891011121314
Across
  1. 3. The law of conservation of _____ says that matter is not created or destroyed during a chemical reaction
  2. 5. exothermic reactions feel ______ to the touch
  3. 9. a chemical reaction where energy is absorbed into the system
  4. 10. endothermic reactions feel ____ to the touch
  5. 11. Mass of the reactants ______ the mass of the products
  6. 14. The numbers that are added in front of formulas to balance a chemical equation
Down
  1. 1. Energy is stored within chemical ______, which may be broken during a reaction
  2. 2. A chemical formula is said to be ________ when there are the same number of each element on both sides of the equation
  3. 4. In an endothermic reaction the products have ____ energy compared to the reactants
  4. 6. The substances that were formed during a chemical reaction
  5. 7. In a chemical equation, the reactants and products are separated by an _____
  6. 8. a chemical reaction where energy is released from the system
  7. 12. in an exothermic reaction, the products have ____ energy compared to the reactants
  8. 13. The substances that are present at the beginning of a reaction