Across
- 1. Tells you the number and kinds of atoms/elements in one molecule of a substance
- 3. the current state of a substance
- 4. anything that has mass and takes up space
- 6. Starting substances in a chemical reaction.
- 9. a phase of matter that has definite volume but no definite shape. Loosely bonded particles in liquid can flow over and around one another.
- 10. A substance made of two or more atoms/particles.
- 12. a physical change from one phase (solid or liquid or gas) to another without changing the substance.
- 14. A single particle of one element (Made of electrons, protons and neutrons.)
- 15. Tells you what the substance is made of
- 18. The small number that comes AFTER an element symbol. Tells you how many atoms/particles of that element there are.
- 19. The temperature at which a liquid changes to a solid.
- 20. Substance that cannot be broken into simpler substances by chemical or physical properties
- 22. Substances created in a chemical reaction
Down
- 2. The change of phase from gas to liquid
- 5. a phase of matter that has definite volume and definite shape. The particles of a solid are tightly bonded and cannot move around.
- 7. A scientific law stating that no matter is created or destroyed during a chemical reaction.
- 8. the type of energy an object has because of its motion.
- 11. To change phase from liquid to gas
- 13. The temperature at which a liquid changes to a gas.
- 16. a phase of matter that has no definite shape or volume. Particles of gas fly independently through space.
- 17. The big number that comes BEFORE a chemical formula. Tells you how many molecules of a substance there are.
- 21. The temperature at which a solid changes to a liquid.