Across
- 4. more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
- 6. when a metal is able to be hammered or pressed into shape without breaking or cracking
- 8. when a metal is able to be drawn out into a thin wire.
- 9. neutral charged subatomic particles of an atom
- 11. when a substance contracts or get smaller when they are cooled down
- 12. when a substance changes from a solid to a liquid or a liquid to a solid it is called a ____________
- 15. become or cause to become incorporated into a liquid so as to form a solution
- 16. substance consisting of atoms of two or more different elements in definite proportions joined by chemical bonds into a molecule
- 17. The molecules of both gases are in constant motion and make numerous collisions and spread into the room
- 18. a substances reacts with another and causes a __________ reaction to occur
Down
- 1. positively charged subatomic particles of an atom
- 2. chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent
- 3. mixture of a solute within a solvent (e.g.in water)
- 4. vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase
- 5. negatively charged parts (subatomic particles) of an atom
- 7. the process of a solid turning into a gas or vice versa
- 10. An increase in the volume of a substance when heated
- 12. the conversion of a vapour or gas to a liquid
- 13. particle that is smaller than or occurring within an atom
- 14. Any change NOT involving a change in the substance's chemical identity