Across
- 4. The bond formed when hydrogen atoms are attracted to an electronegative atom (e.g., oxygen) in another molecule.
- 7. This type of bond forms when atoms share electrons.
- 9. Which type of bond involves the transfer of electrons from one atom to another?
- 10. The opposite of an acid, a substance with a pH greater than 7 that tastes bitter.
- 12. The minimum energy required for a chemical reaction to occur.
Down
- 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. A chemical reaction that absorbs heat from its surroundings, making it feel cold.
- 3. What is the attraction between molecules of the same substance, like water molecules sticking to each other?
- 5. A chemical reaction that releases heat into its surroundings, making it feel hot.
- 6. What subatomic particle carries a negative charge and orbits the nucleus of an atom?
- 7. Substances that speed up chemical reactions without being consumed in the process.
- 8. Biological molecules that act as catalysts in living organisms.
- 11. This substance has a pH value less than 7 and tastes sour.
- 13. What is the smallest unit of an element that retains its properties?