Chemical Reactions Vocab Crossword

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Across
  1. 3. A reaction in which a hydrocarbon combines with oxygen to produce carbon dioxide and water.
  2. 6. A _ speeds up a reaction by lowering the activation energy of a reaction.
  3. 8. The compounds that are combined together to begin a chemical reaction are the _.
  4. 10. When an equation is _, there are an equal number of atoms of each element on the reactants side as there are on the products side.
  5. 12. According to _, atoms must collide with one another in order to react, and they must do so in the correct orientation and with the right amount of energy.
  6. 14. A compound that is formed between a metal and a nonmetal is an _ compound.
  7. 15. Decreasing the volume will speed up a reaction only if both reactants are _.
  8. 16. Changing the _ increases the speed and energy of particles, resulting in more collisions with the appropriate energy.
  9. 19. Some elements are _, meaning they exist in nature as two identical atoms bonded to one another.
  10. 20. To increase the probability of a collision, one could add additional reactants to the reaction vessel, also known as increasing the _.
  11. 22. Atoms must collide with the correct _ and with enough energy for a reaction to occur.
  12. 23. A reaction that takes in energy and makes its surroundings feel colder is called _.
  13. 24. The compounds that are created as a result of a reaction are the _.
Down
  1. 1. A reaction in which one substance breaks down into two or more parts.
  2. 2. To increase the amount of exposed particles available for collisions, the _ should be increased by crushing the reactants.
  3. 3. A compound that is formed solely between nonmetals is a _ compound.
  4. 4. The law of conservation of _ states that mass is never created, nor destroyed.
  5. 5. The amount of energy needed to start a reaction.
  6. 7. The _ tells how many of each atom are in a chemical compound.
  7. 9. The _ indicates how many moles of reactant or product are needed in a balanced equation for a reaction to take place.
  8. 11. An _ compound is one which has been dissolved in water.
  9. 13. The _ number is the total number of electrons that is gained or lost by a neutral atom to form an ionic bond.
  10. 17. A reaction in which multiple elements or compounds combine to create one chemically bonded compound.
  11. 18. The structure that forms while old bonds are breaking and new bonds are forming during a chemical reaction.
  12. 21. A reaction that gives off energy as heat and makes the surroundings hotter is called _.