Across
- 6. a change that alter the chemical composition of a substance
- 9. any change in matter that does not alter its chemical or nuclear composition
- 12. group of two or more atoms covalently bonded together
- 14. a physical combination of two or more substances in changeable ratio
- 16. change in a state directly from a solid to a gas without melting
- 17. the change of state from a solid to a liquid
- 18. a mixture that does not have a uniform appearance since the substances are unevenly distributed
- 20. state of matter in which particles are far apart, move rapidly, and have little interaction with each other
- 21. gas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free electrons
- 22. building block of all matter; consists of protons, electrons, and neutrons
- 24. a pure substance consisting of atoms of two or more different elements that are chemically combined
- 27. the temperature at which a solid turns to a liquid
- 28. the space enclosed or occupied by an object
- 29. the temperature at which a liquid starts to boil
- 31. the change in state directly from a gas to a solid without condensing first
- 32. the measure of gravity acting on the matter in an object
- 33. the relatively fast form of vaporization
Down
- 1. states that all physical matter exits in particles that are always in motion
- 2. the change of state from a gas to a liquid
- 3. anything about a substance that can be observed or measured without altering its chemical composition
- 4. the amount of matter in an object
- 5. the change of state from a liquid to a solid
- 7. law that states a subscript of a formula must be a whole number
- 8. the change of state from a liquid to a vapor
- 9. a material made of one kind of element or compound
- 10. how one substance reacts to another substance
- 11. a mixture that has a uniform appearance: also known as a solution, especially of a solid dissolved in a liquid
- 13. a pure substance that consists of atoms with the same compound
- 15. the slow form of vaporization where particles on the surface of a liquid obtain enough energy to become gas
- 19. law that states that matter can neither be created or destroyed, only change form
- 23. anything that occupies space and mass
- 25. the mass of matter contained within a particular volume
- 26. state of matter in which particles vibrate in a fixed position, giving a substance a fixed shape and volume
- 30. state of matter in which particles are close together but still able to move around