chapter 7 vocab

Edit Answers
123456789101112131415161718192021222324
Across
  1. 4. A combination of chemical formulas and symbols that model a chemical reaction
  2. 5. The principle that states that a chemical system in equilibrium will adjust its equilibrium position in such a way as to reduce the effect of any changes made to the system
  3. 6. A chemical reaction in which two or more reactants combine into a single, more complex product
  4. 8. An exothermic chemical reaction in which a fuel reacts with oxygen
  5. 10. The speed of reaction
  6. 11. A substance that is formed during a chemical reaction
  7. 12. A chemical reaction that releases more thermal energy that it absorbs
  8. 13. A reaction in which the products can react together to re-form the original reactants
  9. 16. The minium energy needed for a chemical reaction to occur
  10. 18. A loss of electrons in a chemical reaction
  11. 20. The state that occurs when forward and reverse reactions each happen at the same rate
  12. 22. The model that states that for a reaction to occur, the reactant particles must collide with each other, with the proper alignment, and with enough energy
  13. 23. The law that states that energy connot be created nor destroyed but only transferred between objects or transformed; also known as the first law of thermodynamics
  14. 24. A chemical reaction in which two compounds swap cations or anions with each other; also known as a double-displacement reaction
Down
  1. 1. A number places in front of a chemical formula within a chemical equation that shows how many units of a reactant or product are needed to balance the chemical equation
  2. 2. A substance that helps a reaction happen faster but is not used up in the reaction
  3. 3. a process that rearranges the atoms in one or more substances into one or more new substances
  4. 6. A chemical reaction in which one element in a compound is replaced by another element; also knws as a single-displacement reaction
  5. 7. A chemical reaction that absorbs more thermal energy than it releases
  6. 9. A substance that enters into a chemical reaction
  7. 14. The mass of one mole of a substance
  8. 15. A gain of electrons in a chemical reaction
  9. 17. SI fundamental unit for the quantity of matter in a substance; a count equal to 6.022 x 10^23
  10. 19. A chemical reaction in which a single reactant breaks down into two or more products
  11. 21. A substance that slows the rate of a reaction by reducing the effectiveness of catalysts