Chapter 7 vocab Makayla Hair PS 211-B 3/25/25

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Across
  1. 5. equation- A combination of chemical formulas and symbols that models a chemical reaction.
  2. 7. SI fundamental unit for the quantity of matter in a substance.
  3. 8. A gain of electrons in a chemical reaction.
  4. 11. A substance that is formed during a chemical reaction.
  5. 14. A substance that enters into a chemical reaction.
Down
  1. 1. A number placed 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. Reaction- A chemical rection in which two or more reactants combine into a single, or more complex product.
  3. 3. replacement reaction- A chemical reaction in with two compounds swap cation or anions with each other.
  4. 4. A loss of electrons in a chemical reaction.
  5. 6. mass- The mass of one mole of a substance.
  6. 9. Reaction- A chemical reaction in which a single reactant breaks down into two or more products.
  7. 10. An exothermic chemical reaction in which a fuel reacts with oxygen.
  8. 12. replacement reaction- A chemical reaction in which one element in a compound is replaced by another element.
  9. 13. Reaction- A process that rearranges the atoms in one or more substances into one or more new substances.