Across
- 3. Process that changes, or transforms, one set of chemicals into another set of chemicals
- 7. Atom that has a positive or negative charge
- 8. Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair
- 13. Compound that produces hydroxide ions in solution; solution with a pH of more than 7
- 15. Molecules composed of many monomers; makes up macromolecules
- 17. scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a pH of 7 to 14 is basic
- 19. Chemical bond formed when one or more electrons are transferred from one atom to another
- 20. The center of an atom, which contains the protons and neutrons
- 21. Material composed of two or more elements or compounds that are physically mixed together but not chemically combined
- 23. Substance that is dissolved in a solution
- 24. Smallest unit of most compounds that displays all the properties of that compound
- 26. Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
- 30. dissolving substance in a solution
- 31. Substance that speeds up the rate of a chemical reaction
- 32. Force of attraction between different kinds of molecules
- 33. Weak attraction between a hydrogen atom and another atom
- 34. Negatively charged particle; located in the space surrounding the nucleus
- 35. Compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
- 36. Sub-atomic particle that has no charge and is found in the nucleus of an atom
Down
- 1. Reactant of an enzyme-catalyzed reaction
- 2. Positively charged sub-atomic particle that is found in the nucleus of an atom
- 4. One of several forms of a single element, which contains the same number of protons but different numbers of neutrons
- 5. Energy that is needed to get a reaction started
- 6. Attraction between molecules of the same substance
- 9. Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
- 10. Elements or compounds produced by a chemical reaction
- 11. Mixture of water and nondissolved material
- 12. Type of bond between atoms in which the electrons are shared
- 14. Type of mixture in which all the components are evenly distributed
- 16. Small chemical unit that makes up a polymer
- 18. Pure substance that consists entirely of one type of atom
- 22. Compound that prevents sharp, sudden changes in pH
- 25. Protein catalyst that speeds up the rate of specific biological reactions
- 27. Substance formed by the chemical combination of two or more elements in definite proportions
- 28. Elements or compounds that enter into a chemical reaction
- 29. Compound that forms hydrogen ions in solution; a solution with a pH of less than 7
- 32. The basic unit of matter