1. 1 Distilled H 2 O -- 2Tap water-- 3NaCl5 4CuSO 4 5 5Sugar5 6Alcohol5 7HCl5 8 1 9HC 2 H 3 O 2 5 10HC 2 H 3 O 2 1 11NaOH5 12NaOH1 13HC 2 H 3 O 2 17.4Observations HC 2 H 3 O 2 (aq): acetic acid HCl(aq): hydrochloric acid NaOH(aq): sodium hydroxide CuSO 4 (aq): copper(II) sulfate non strong weak strong non strong weak non

2. Answers 1.An electrolyte is a compound that, in aqueous solution, conducts electricity. As liquids: salts, bases. When aq: salts, acids, bases. 2.HCl(aq): H + (aq) + Cl – (aq) NaOH(aq): Na + (aq) + OH – (aq) CuSO 4 (aq):Cu 2+ (aq) + SO 4 2– (aq) 3.Acid: a compound that ionizes in water to form hydrogen ions. Base: an ionic hydroxide that dissociates in water to produce hydroxide ions. 4.By placing H in front it indicates that the compound is an acid (that H comes off as H + ).

3. Ionization DissociationAnswers 5.Dissociation occurs when a (ionic) compound breaks into its ions in water. Ionization occurs when a neutral atom or molecule is converted into an ion (e.g. by water). Ionic compounds and bases dissociate. Acids ionize. + ClH H H O + H H HO + + Na H H O H H O Cl ++ Na +

4. 6.HC 2 H 3 O 2 is an acid; in solution it is ionized by H 2 O, providing ions that conduct electricity. When its pure, theres no water: it cant ionize. 7.A strong acid has a greater percentage ioniza- tion (most molecules are converted to ions). 8.The % of molecules that form ions in solution. 9.HCl was a strong acid. HC 2 H 3 O 2 was weak. 10.In the lab, 1 M HCl conducted strongly, 5 M HC 2 H 3 O 2 weakly. 1 M HCl had more ions. 11.HCl(aq), HNO 3 (aq), H 2 SO 4 (aq), HBr(aq) A = anion, M = metal 12. H 2 SO 3 :acid,KOH:base, CH 3 OH:other, HC 3 H 5 O 2 :acid,Na 2 C 2 H 3 O 2 :salt,Ba(OH) 2 :base For more lessons, visit www.chalkbored.com www.chalkbored.com