chemistry crossword
Across
- 5. A pure substance formed when at least one metal and one non-metal combine
- 7. A combination of pure substances that don't always combine chemically and are not always in the same ratio
- 8. A table in which the element are organized by their physical and chemical properties
- 11. A change in the appearance or state of a substance that does not change the composition
- 14. A cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out
- 17. Property that describe the physical appearance and composition of a substance
- 19. Change of state from a liquid to a solid
- 20. A chemical reaction that releases energy
- 21. A pure substance formed when non-metals combine
- 23. Mixture in which different substances that make up the mixture are visible
- 25. A mixture of two or more pure substances that looks like one substance
- 26. Anything that has mass and occupies space
Down
- 1. Change that results when two or more substances react to create a different substance or substances, the new substances have to be completely different properties from the original ones
- 2. Number of protons in the nucleus of one atom of an element
- 3. A substance only made up of one kind of matter,which has a unique set of properties
- 4. Change of state from a solid to a gas or from a gas to a solid
- 6. Description of how a substance interacts with other substances, such as acids; It is only observable when a chemical change occurs
- 9. Change of state from a gas to a liquid
- 10. Chemical reaction that absorbs energy
- 12. Mass of one atom of an element calculated from the total number of protons, neutrons and electron of that atom
- 13. Change of state from a gas to a solid
- 15. Change of state from a liquid to a gas
- 16. Change of state from a solid to a liquid
- 18. A chemical combination of two or more elements in a specific ratio
- 22. A cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
- 24. A pure substance that cannot be broken down into other substances, it is made up of only one type of atom