Exothermic and Endothermic reactions

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  1. 3. Reaction between carbon and oxygen.
  2. 5. Reaction between sodium carbonate and chloride.
  3. 6. Matter that has properties and composition.
  4. 8. During reaction of sodium chloride, what solute in the reaction?
  5. 9. A reaction includes base and acid react to form water and salt.
  6. 13. Energy is stored in the bonds of chemical compounds.
  7. 14. Including in exothermic reaction.
  8. 15. Energy that is released to the environment.
  9. 16. When iron rusts, it combines with oxygen from the air.
  10. 18. Related to exothermic reaction, reaction between fuel and oxidant.
  11. 20. During reaction of potassium chloride,what solvent in the reaction?
  12. 21. What is the chemical reaction in which energy is taken in?
  13. 22. Symbolic representation of a chemical reaction in the form of symbols and formulae.
  14. 24. Another term used for burning.
  15. 25. How energy do the surroundings?
  16. 26. The type of reaction in exothermic reaction.
  17. 27. A reaction between copper wire and sulfur.
  18. 28. Reaction between magnesium and chlorine gas.
  19. 29. Weak organic acid that has molecular formula.
  20. 30. How much energy stores in the products?
Down
  1. 1. A substance combines with oxygen.
  2. 2. When the surroundings vibrate more and more, what energy is given?
  3. 3. What reaction when heat evolved?
  4. 4. Another process in endothermic reaction?
  5. 7. Energy including in Endothermic reaction.
  6. 10. What temperature becomes when energy is taken from the environment?
  7. 11. Reaction when temperature increases.
  8. 12. Potassium,water and hydrogen mixed together, what is the reaction?
  9. 17. A forming of water vapor in clouds.
  10. 19. Air like substances that can move around freely and flow.
  11. 23. Chemical formula Na2SO3.