Chemistry unit 1
Across
- 5. a mixture that is not uniform in composition, you can visibly see differences in the particles
- 6. the amount of space something takes up
- 7. phase transition from solid to liquid
- 10. the insturment we used in the lab to measure the mass of a substance
- 11. a single molecule or free-floating atom
- 12. a pure substance which only contains 1 type of element
- 13. the study of matter
- 15. a method of measuring the volume of an irregularly shaped solid object using water and a graduated cylinder
- 20. phase transition from gas to solid
- 23. a state of matter with indefinite volume and indefinite shape
- 25. phase transition from solid to gas
- 27. the number written in the lower right corner immediately following an elements symbol. It tells us the quantity of that element if it is more than one
- 28. a substance where there are two or more different types of particles
Down
- 1. the number written before the chemical formula that tells us the quantity of the molecules
- 2. a formula that tells us the amount and type of atoms that are bonded together in a molecule
- 3. a mixture that is uniform in composition, there is no visible difference in the particles
- 4. a variable that is expressed by a number
- 8. the ratio of mass to volume
- 9. anything that has volume and takes up space
- 14. a state of matter with definite volume and indefinite shape
- 16. phase transition from liquid to gas
- 17. a substance where every particle is identical
- 18. phase transition from gas to liquid
- 19. a state of matter with definite volume and definite shape
- 21. the amount of matter in an object
- 22. a pure substance which contains 2 or more types of elements
- 24. phase transition from liquid to solid
- 26. 2 or more elements bonded together, expressed as a chemical formula