Combustion and chemical reactions

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Across
  1. 1. Substances formed as a result of a chemical reaction.
  2. 4. Change: A transformation in which one or more substances are converted into different substances with new properties.
  3. 6. Visible, glowing gas produced during combustion.
  4. 8. Combustion: Combustion in which the supply of oxygen is limited, resulting in the formation of partially burned products.
  5. 9. Substances that undergo a chemical reaction.
  6. 10. The initiation of combustion or the point at which a substance starts to burn.
  7. 13. Equation: A symbolic representation of a chemical reaction, showing the reactants and products.
  8. 14. The process of a substance combining with oxygen, often accompanied by the release of heat.
  9. 15. Reaction: A type of chemical reaction where two or more substances combine to form a new, more complex substance.
  10. 17. Reaction: A type of chemical reaction where a single substance breaks down into two or more simpler substances.
  11. 19. A substance that undergoes combustion to produce heat or energy.
  12. 20. Absorbing heat during a chemical reaction.
Down
  1. 2. A substance that speeds up a chemical reaction without being consumed in the process.
  2. 3. The process of burning, usually involving the combination of a substance with oxygen.
  3. 5. Releasing heat during a chemical reaction.
  4. 7. Reaction: A process where substances are transformed into new substances with different properties.
  5. 11. The gain of electrons by a substance during a chemical reaction.
  6. 12. Capable of undergoing combustion; flammable.
  7. 16. Combustion: Combustion in which a sufficient supply of oxygen is available, leading to the formation of complete combustion products.
  8. 18. A chemical element essential for combustion, supporting the burning of materials.