Across
- 1. Deoxyribouncleic acid
- 5. A pure substance made of only one kind of atom
- 6. Compounds that form hydrogen ions when dissolved into water
- 8. The energy needed to start a chemical reaction
- 12. The hydrogen bonds between water molecules
- 13. Smallest unit of life
- 15. A substance made of the joined atoms of two or more elements
- 17. Usually a large molecule formed by linking smaller molecules
- 18. The building blocks of protein
- 19. An atom or molecule that has gained or lost one or more electron
- 20. Made of three parts: sugar, a base, and a phosphate
- 21. on which an enzyme acts during a chemical reaction
- 24. The ability to move or change matter
- 25. An attraction between different substances
Down
- 2. A long chain of smaller molecules
- 3. Compounds that reduce the concentration of hydroxide ions
- 4. Non polar molecules that are not soluble or mostly insoluble in water
- 7. The building blocks of carbohydrates
- 9. Organic compounds made of carbon, hydrogen, and oxygen atoms
- 10. A large protein with fold from pockets
- 11. Riboncleic acid
- 14. Two or more atoms that share electrons to form a molecule
- 16. Adenosine triphosphate
- 22. A mixture in which one or more substances are evenly distributed
- 23. Substances that increase the speed of chemical reactions