Across
- 3. A pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
- 5. a property of a substance that describes how its chemical identity changes in the presence of another substances or under certain conditions
- 7. a pure substance that consists of atoms with the same atomic number
- 10. a change that alters the chemical composition of a substance
- 12. of matter The law that states that matter can neither be created nor destroyed, but can only change form
- 15. The state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume
- 18. Anything that has mass and occupies space
- 20. of definite proportions The law that states that within a closed system, the total momentum remains constant
- 21. A particle consisting of two or more atoms covalently bonded together
- 22. The state of matter in which particles are close together but able to move around
- 23. a gas like state of matter formed at very high temperatures, that consists of high-energy ions and free electrons
- 24. the change of state from a solid to a liquid
- 26. The temperature at which liquid starts to boil
- 27. ANy change in the matter that does not alter is chemical or nuclear composition
- 29. The measure of the amount of matter in an object
- 30. the force of gravity acting on the matter in an object
- 32. the space enclosed or occupied by an object
- 33. a mixture that does not have a uniform appearance since the combined substances are unevenly distributed
- 34. a physical combination of two or more substances in a changeable ratio
Down
- 1. anything about a substance that can be observed or measured without altering its chemical composition
- 2. The change of state from a gas (vapor) to a liquid
- 4. the change in state directly from a solid to a gas (vapor) without melting first
- 6. The relatively slow form of vaporization in which liquid particles obtain sufficient energy to change the gaseous state through random collisions of particles
- 8. the change in state directly from a gas (vapor) to a solid without condensing first
- 9. a material made of only one kind of element or compound
- 11. A mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid
- 13. the building block of all matter; consists of protons, electrons, and usually neutrons
- 14. a model that states that all physical matter exists in the form of particles.
- 16. The change of state form a liquid to a solid
- 17. The change of state from a liquid to a gas (vapor)
- 19. The relatively fast form of vaporization in which the energy within the liquid creators higher pressure within the liquid then the air pressure outside the liquid
- 25. The state of matter in which particles are far apart, move rapidly, and have little interaction with each other
- 28. the temperature at which a solid turns into a liquid
- 31. the mass per unit volume of an object