Across
- 2. A number in a chemical equation indicating more than one molecule of the substance
- 5. The tendency of a substance to interact with itself
- 6. The smallest piece of an element that maintains the identity of that element
- 9. An ionic compound of the H+ cation dissolved in water
- 12. The connection between two atoms in a molecule
- 14. ending that is applied that describes the types of chemical bonds in the molecule
- 15. A chemical bond formed by two atoms sharing electrons
- 17. Bind to the surface of another substance
- 18. A physical property defined as a substance’s mass divided by its volume
- 19. The characteristic temperature at which a liquid becomes a gas
- 20. the unit of temperature scales
- 21. A chemical reaction in which a reactant combines with oxygen to produce oxides of all other elements as products
- 22. A tiny subatomic particle with a negative charge
Down
- 1. Chemical reactions that absorb (or use) energy
- 3. The sum of the number of protons and neutrons in a nucleus
- 4. A species with an overall negative charge
- 5. a combination of more than one elements
- 7. the name comes before the molecule
- 8. When a chemical reaction happens, energy is transferred to or from the surroundings.
- 10. the process of gas becoming a liquid
- 11. A gas law that relates number of particles to volume
- 13. A condition when the reactants and products of a chemical equation have the same number of atoms of all elements presentcatalyst
- 16. A compound that increases the amount of OH− ions in an aqueous solution