Across
- 6. Attraction between molecules of the same substance
- 8. A process that changes, or transforms, one set of compounds into another
- 9. Small chemical unit that makes up a polymer
- 10. The amount of energy needed to raise its temperature by making its molecules move faster
- 14. Mixtures of water and nondissolved material
- 18. A compound that produces OH- ions in a solution
- 20. The center of the atom, formed of protons and neutrons
- 22. Formed when one or more electrons are transferred
- 23. The substance that dissolves the solute
- 24. The basic unit of matter
- 25. Molecule composed of many monomers; makes up a macromolecule
- 27. Protein catalysts that speeds up the rate of a specific biological reaction
- 28. Subunit of which nucleic acids are composed; made up of 5-carbon sugar, a phosphate group, and a nitrogenous base
- 29. Structure that results when atoms joined together by a covalent bond
- 32. The attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge
- 33. Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH.
- 34. Pure substance that consists entirely of one type of atom
- 35. Material composed of two or more elements or compounds that are physically mixed together but not chemically combined
- 38. Elements or compounds that engage in a chemical reaction
- 39. Slight attraction that develops between oppositely charged regions of nearby molecules
Down
- 1. Compound with an amino group on one end and a carboxyl group on the other end
- 2. reactant of the enzyme-catalyzed reaction
- 3. Negatively charged particle
- 4. The substance that is dissolved
- 5. Sharing of electrons
- 7. Substance that speeds up the rate of chemical reactions without being consumed by the reaction
- 11. Negatively and positively charged atoms
- 12. Substance formed by the chemical combination of two or more elements in definite proportions
- 13. Energy needed to get a reaction started
- 15. indicate the concentration of H+ ions in a solution
- 16. Atoms of the same element that differ in the number of neutrons they contain
- 17. Compound made of carbon, hydrogen, and oxygen atoms; major source of energy to the body
- 19. Holds together atoms in a compound
- 21. Attraction between molecules of different substances
- 26. Macromolecules that are made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes. not soluble in water
- 28. Macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorous
- 30. Type of mixture in which all the components are evenly distributed
- 31. macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body Mor growth and repair
- 36. The elements or compounds produced by a chemical reaction
- 37. Any compound that releases H+ ions into the solution