phys sci

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Across
  1. 2. the energy stored in chemical bonds (measured in kilojoules)
  2. 4. a Measurement unit that = 6.02x102 particles
  3. 8. a reaction that gives off heat to its surroundings.
  4. 11. a reaction where 2 compounds exchange components making new compounds AB + CD -> AD + CB
  5. 12. A reaction where 2 or more elements form a new compound A + B -> AB
Down
  1. 1. A reaction where a compound is broken down into its component elements AB -> A + B
  2. 3. a reaction where a compound and element join to form a different compound & element AB + C -> AC + B
  3. 5. the molar mass is the AMU number with the unit grams (Measure the mass of I mole of molecules)
  4. 6. compound a compound made of 2 elements
  5. 7. (burning) rapid reaction that uses Oxygen to create heat & light.
  6. 9. a reaction that absorbs heat from its surroundings.
  7. 10. a unit = to the e mass o Measure Atomic mass) of I proton. (used to