Across
- 3. changes affecting the form of a chemical substance but not its chemical composition
- 5. the increase in the rate of a chemical reaction due to an added substance known as a catalyst
- 7. a physical quantity that quantitatively expresses the attribute of hotness or coldness
- 8. the capTemperatureng work
- 10. a substance made from two or more different elements that have been chemically joined
- 13. a biomolecule consisting of carbon, hydrogen and oxygen atoms
- 20. are proteins that act as biological catalysts by accelerating chemical reactions
- 21. a molecule that has a charge on one side of the molecule, that is not cancelled out
- 23. the intermolecular attractive force acting between two adjacent portions of a substance, particularly of a solid or liquid
- 24. any substance in water solution is slippery to the touch, tastes bitter, changes the color of indicators
- 25. the basic building block of nucleic acids
- 26. fatty, waxy, or oily compounds that are soluble in organic solvents and insoluble in polar solvents such as water
- 28. chemical or biological molecules that regulate chemical reactions by slowing down or blocking them from occurring
- 29. the tendency of dissimilar particles or surfaces to cling to one another
Down
- 1. a substance or compound added to a system to cause a chemical reaction, or test if one occurs
- 2. a groups of two or more atoms held together by attractive forces known as chemical bonds
- 4. a process in which one or more substances are altered into one or more new and different substances
- 6. a substance that is formed as the result of a chemical reaction
- 9. a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty
- 11. any substance that has mass and takes up space by having volume
- 12. the association of atoms or ions to form molecules, crystals, and other structures
- 14. are organic compounds that contain both amino and carboxylic acid functional groups
- 15. a chemical substance that cannot be broken down into other substances by chemical reactions.
- 16. any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements
- 17. the net movement of anything generally from a region of higher concentration to a region of lower concentration.
- 18. the basic building blocks of chemistry
- 19. the process where a solute in a gaseous, liquid, or solid phase dissolves in a solvent to form a solution
- 22. any substance that in water solution tastes sour, changes blue litmus paper to red
- 27. a term referring to a broad category of all mono- and disaccharides: the simplest carbohydrates