Across
- 4. Any change that occurs without altering the chemical composition of a substance
- 6. (not element)is the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons
- 8. is defined as the ratio between mass and volume or mass per unit volume
- 11. is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid
- 12. is made up of atoms
- 13. A substance that cannot be broken down into simpler substances by chemical means
Down
- 1. substances that are made of only one type of atom or only one type of molecule
- 2. is the tendency of a substance to undergo chemical reaction
- 3. involving the rearrangement of the atoms of one or more substances and a change in their chemical properties
- 5. is a substance formed when two or more chemical elements are chemically bonded together
- 7. is the temperature at which the solid and liquid phases of a substance are in equilibrium at a specified pressure
- 9. is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound
- 10. is a material made up of two or more different substances which are mixed but are not combined chemically