Across
- 3. A state of matter in which the particles have relatively littler energy, cannot overcome the attractive forces, and remain in fixed positions in set distances between them. It has a fixed volume and is relatively incompressible
- 4. The physical law stating that energy can be neither created nor destroyed but can be converted from one form into another
- 5. A physical change from the solid state directly to the gaseous state
- 6. A mixture of two or more substances in separate phases, such as a suspension
- 9. A neutral particle with a centrally located nucleus, consisting of protons and neutrons, with electrons around it; the smallest particle that makes up an element and that is capable of chemical interactions
- 12. The measure of the dispersal of energy in a system; the net decrease of usable energy in a system for a given temperature and quantity of matter
- 13. A charged particle; an atom or molecule that has gained or lost electrons, producing an imbalance between the number of protons and electrons in the particle
- 14. A gas-like substance, formed at very high temperatures, that consists of high-energy ions. It is the most abundant form of matter in the universe
- 15. A number written at the lower right of a chemical symbol, indicating the number of atoms or groups of atoms in a chemical formula.
- 17. The sum of the kinetic energies of the molecules or ions in matter.
- 19. Pertaining to a chemical process that absorbs heat energy and produces a positive change in enthalpy
- 20. a property of matter that describes how one substance reacts in the presence of other substances or conditions
Down
- 1. a theory stating that the particles of matter are in constant motion, affecting the properties of matter
- 2. A physical change from the gaseous stae to the liquid state
- 7. The temperature scale that divides the range from freezing of water to the boiling point of water into 100 increments and labels absolute zero at its zero point. It is the absolute scale.
- 8. a change that alters the physical properties of a substance, such as state, shape and size, but does not change its identity
- 10. A measure of the average kinetic energy of particles in matter (measured in degrees Celsius or in kelvins); the hotness or coldness of an object
- 11. A physical change from the solid state to a liquid state
- 16. a combination of two or more pure substances that can be separated by physical means
- 18. Chemical symbols arranged to represent molecules or formula units that make up compounds. Formulas show both the identity and number of atoms from each element