67 Name ________________________________________________________________ Date ________________________ Period _______________ Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Definitions 1. ____ A positively charged hydrogen atom. 2. ____ A compound that helps stabilize pH by absorbing excess acids or bases in a solution. 3. ____ Expresses the degree of concentration of hydrogen or hydronium ions present in a solution. 4. ____ A substance that creates hydrogen or hydronium ions in a water-based solution. 5. ____ A measure of solute concentrations expressed as moles per liter. 6. ____ The measure of parts of one substance to the known volume of another. 7. ____ A naturally occurring color pigment that changes color when exposed to acids or bases. 8. ____ The point at which there is an equal number of acid and base molecules. 9. ____ Avogadro’s number of particles of any substance. 10. ____ A substance that produces hydroxide ions in a water-based solution. 11. ____ An organic dye that demonstrates through color change the degree of acidity of a solution. 12. ____ The point at which all ions in a solution have combined chemically. 13. ____ A negatively charged ion composed of one atom of oxygen and one atom of hydrogen (OH). 14. ____ The process of adding a base with a known pH to an acid or adding an acid with a known pH. 15. ____ A combination of acids and bases that form a compound with ionic bonds. 16. ____ Produces an acid-base reaction in which carbon dioxide is a by-product in baked goods. Ions: Charged Particles in Solution CHAPTER 6 Activity A What’s the Charge? Match the definitions with the corresponding terms. Some terms will not be used. Terms A. acid B. Avogadro’s number C. base D. botulism E. buffer F. chemical leavening agent G. concentration H. endpoint I. hydrogen atom J. hydronium ion K. hydroxide ion L. indicator M. ionization N. mole O. molarity P. neutralization Q. organic dye R. pH scale S. proton donor T. proton acceptor U. salt V. titration