Across
- 3. A mixture in which particles of a material are more or less evenly dispersed, but not dissolved.
- 5. Carbon compound that regulates cell processes; made of amino acids.
- 9. 2 or more elements or compounds physically mixed but not chemically combined; can be separated.
- 12. Single sugar.
- 14. Speeds up the rate of a chemical reaction.
- 17. What comes out of a chemical reaction.
- 18. A molecule with an uneven distribution of electrons, making one end positive, the other negative.
- 20. When one or more electrons are transferred from one atom to the other.
- 22. A compound with a pH of 7.
- 23. A compound that produces hydroxide ions in solution; has a pH >7.
- 24. What goes into the reaction.
- 25. smallest unit of most compounds.
- 27. The energy needed to start a chemical reaction.
- 28. What is being dissolved.
- 31. When electrons are shared between two atoms.
- 34. Carbon compound that is a major source of energy for most living things.
- 35. An atom or group of atoms that has a positive or negative charge.
- 38. Attraction between molecules of different substances.
Down
- 1. Two or more elements chemically combined.
- 2. Mixture in which all components are evenly distributed; one is substance is dissolved in another.
- 4. Carbon compound that stores and transmits genetic information: RNA and DNA.
- 6. A pure substance with only one type of atom.
- 7. Acts like a catalyst in living things because it speeds up reactions in cells.
- 8. monomer of protein.
- 10. Positively charged part of an atom in the nucleus.
- 11. Negatively charged particle of an atom that orbits around the nucleus and is 1/1840 the size of a proton.
- 13. Very weak bonds; occurs when a hydrogen atom in one molecule is attracted to the electrostatic atom in another molecule.
- 15. Atoms of the same element that have different numbers of neutrons.
- 16. process that changes or transforms elements or compounds into another.
- 18. Scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution.
- 19. The building blocks of matter; the basic unit of matter.
- 21. Monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base.
- 26. Attraction between molecules of the same substance.
- 29. Large macromolecule formed from monosaccharides.
- 30. large molecules formed from many small molecules.
- 32. Compound that forms hydrogen ions (H+) in solution; has a pH range < 7.
- 33. In a solution, the substance in which the solute dissolves.
- 36. Part of atom with no charge in the nucleus.
- 37. Energy-rich organic compounds, such as fats, oils, and waxes; made of carbon, hydrogen, and oxygen.