Combustion

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Across
  1. 3. what does hydrogen gas form when combusted
  2. 5. An element common in all combustion reactions
  3. 7. true or false batteries are also oxidation reactions
  4. 9. Is combustion a physical or chemical reaction
  5. 10. A reaction which releases heat
Down
  1. 1. Produced from the oxidation of iron
  2. 2. Another name for combustion
  3. 4. A compound consisting of oxygen and one other element
  4. 6. Combustion is an example of...
  5. 7. True or false humans breathe because their body require oxidation reactions for energy
  6. 8. C6H12O6+ xO2-> 6CO2 + 6H2O What is the value of x?