Across
- 4. Substances produced by cells that prevent sharp, sudden changes in pH
- 8. Parts of the mixture are unevenly mixed
- 10. Any compound that forms H+ ions in a solution
- 11. A molecule that is positive on one end and negative on the other end
- 13. Holds together the atoms that compose compounds
- 17. Composed of many molecules of sugar bonded together
- 19. Formed when electrons are shared between atoms
- 20. Substance that does the dissolving
- 21. Composed of two molecules of sugar bonded together
- 24. Attraction between molecules of the same substance
- 25. Compounds made up of carbon, hydrogen and oxygen in a ratio of 1:2:1
Down
- 1. Substance composed of two or more elements or compounds that are physically mixed together but not chemically combined
- 2. Substance that is dissolved
- 3. Chemical combination of two or more elements in definite proportion
- 5. A pure substance consisting of ally the same type of atom
- 6. Mixture of water and undissolved materials
- 7. Contain one molecule of sugar
- 9. Stringy, fibrous material found in the cell wall of plants
- 12. Measurement system used to indicate the concentration of "H" ions in a solution
- 14. Made from thousands of smaller molecules
- 15. Formed when one or more electrons are transferred from one atom to another
- 16. Parts of the mixture are evenly mixed
- 18. Attraction between molecules of a different substance
- 22. The basic unit of matter
- 23. Any compound that forms OH- ions in a solution
