Across
- 1. A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation.
- 3. Basic building blocks of matter.
- 4. An interaction between two atoms as a result of sharing or transferring valence electrons.
- 6. A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
- 7. The process by which particles in solutions are evenly distributed throughout the solvent by Brownian motion.
- 9. The process by which one substance,the solute,is broken up into smaller pieces by and distributed within a second substance, the solvent.
- 10. A substance that can produce hydrogen ions or accept hydrogen ions in solution.
- 13. A class of non organic compounds that are insoluble in water and used for energy storage and cell membranes in living storage.
- 14. The substances formed during a chemical reaction, usually indicated on the right-hand side of a chemical equation.
- 15. The tendency of energy to disperse and become less available to do work.
- 16. Changes that don't change a matter's identity.
- 21. A measure of the average speed of the particles within a substance.
- 23. Organic compounds made of carbons, hydrogens, and oxygens.
- 24. A natural occurring catalyst, usually protein.
- 26. The smallest particle of a covalent bonded compound.
- 27. A class of organic compounds that serve as the building blocks of proteins.
Down
- 2. A compound made of two or more elements chemically combined.
- 3. The attraction of particles in one substance for particles in a different substance.
- 5. A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyses.
- 8. The attraction between like particles within polar substances.
- 11. A substance that can produce hydrogen ions in solution.
- 12. A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction.
- 15. Pure substances made of only one kind of atom.
- 17. Simple carbohydrates.
- 18. Immaterial stuff that gets things done.
- 19. Quality of molecules having an uneven distribution of electrical charge,resulting in some regions of a molecule having negative charge while others are positive.
- 20. Molecules that contain carbon convalently bonded to other elements.
- 22. The physical stuff that makes up the universe.
- 25. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.