Chemical Bonds and Reactions

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Across
  1. 4. The bond formed when hydrogen atoms are attracted to an electronegative atom (e.g., oxygen) in another molecule.
  2. 7. This type of bond forms when atoms share electrons.
  3. 9. Which type of bond involves the transfer of electrons from one atom to another?
  4. 10. The opposite of an acid, a substance with a pH greater than 7 that tastes bitter.
  5. 12. The minimum energy required for a chemical reaction to occur.
Down
  1. 1. A state where the rates of the forward and reverse reactions are equal, resulting in no net change in the concentration of products and reactants.
  2. 2. A chemical reaction that absorbs heat from its surroundings, making it feel cold.
  3. 3. What is the attraction between molecules of the same substance, like water molecules sticking to each other?
  4. 5. A chemical reaction that releases heat into its surroundings, making it feel hot.
  5. 6. What subatomic particle carries a negative charge and orbits the nucleus of an atom?
  6. 7. Substances that speed up chemical reactions without being consumed in the process.
  7. 8. Biological molecules that act as catalysts in living organisms.
  8. 11. This substance has a pH value less than 7 and tastes sour.
  9. 13. What is the smallest unit of an element that retains its properties?