Across
- 2. property- A property of a substance that describes how its chemical identity changes in the presence of another substance or under certain conditions.
- 5. mixture- A mixture that has a uniform appearance throughout
- 7. The measure of the amount of matter in an object.
- 10. mixture- A mixture that does not have a uniform appearance throughout
- 12. of conversation of matter- A model, often expressed as a mathematical equation, that describes phenomena under certain conditons.
- 14. change- Any change in matter that does not alter its chemical or nuclear composition
- 18. A pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio.
- 20. A particle consisting of two or more atoms covalently bonded together.
- 22. The change of state from a solid to a liquid.
- 23. substance- A material made of only one kind of element or compound
- 24. The relatively fast form of vaporization in which the energy within a liquid creates higher pressure within the liquid than the air pressure outside the liquid
- 26. property- Anything about a substance that can be observed or measured without altering its chemical composition
- 30. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other.
- 31. Anything that has mass and occupies space.
Down
- 1. The relatively slow form of vaporization in which liquid particles obtain sufficient energy to change to the gaseous state through the random collisions of particles.
- 3. The change of state from gas (vapor) to a liquid.
- 4. The space enclosed or occupied by an object
- 6. model of matter- A model that states that all physical matter exists in the form of particles.
- 8. The force of gravity acting on the matter in an object
- 9. point-The temperature at which a liquid starts to boil
- 11. A pure substance that consists of atoms of the same atomic number.
- 13. the building block of all matter
- 15. The state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume
- 16. The mass per unit volume of an object
- 17. The change of state from a liquid to a solid.
- 19. The change in state directly from a gas (vapor) to a solid without condensing first.
- 21. point- The temperature at which a solid turns to a liquid
- 25. A physical combination of two or more substances in a changeable ratio
- 27. The state of matter in which particles are close together but able to move around
- 28. of definite proportions- The law that states that the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds
- 29. change- A change that alters the chemical composition of a substance