Across
- 2. a large molecule.
- 3. are atoms or molecules that has gained or lost one or more electrons.
- 4. the building blocks of proteins.
- 7. deoxyribonucleic acid.
- 8. compounds that reduce the concentration of hydrogen atoms in a solution.
- 10. seventy percent of your body is made of this.
- 13. building blocks of carbohydrates.
- 17. are substances that increase the speed of chemical reactions.
- 18. adenosine triphophate.
- 19. the ability to move or change matter.
- 20. ribonucleic acid.
Down
- 1. is an attraction substances of the same kind.
- 4. are compounds that form hydrogen atoms when dissolved in water.
- 5. organic compounds made of carbon, hydrogen, and oxygen atoms.
- 6. is a mixture in which one or more substances are evenly distributed in another substance.
- 9. the smallest unit of matter.
- 11. a group of atoms help together by covalent bonds.
- 12. are non polar molecules that are not soluble.
- 14. a substance made of the joined atoms of two or more elements.
- 15. is an attraction between different substances.
- 16. a pure substance made of one kind of atom.