Colegio San PatricioName _________________________________________________ Date _________

1.- The pH scales measures:a) concentration of acids c) concentration of H ionsb) concentration of OH ions d) concentration of salt

2.- Which of the following is a salt:a) H2O b) HCl c) KOH d) KCl

3.- In a base:a) the OH < H b) the OH = Hc) the OH > H d) none

4.- On a pH scale, a pH = 1.5 would bea) acidic b) very basic c) basic d) neutral

5.- Of the following solutions, select the one that is more acidic:a) milk pH = 6.5 b) tomato pH = 4 c) bleach pH = 11 d) coffee pH = 5

6.- In the process of neutralization, an acid and a base react to form:a) water only b) salt and CO2 c) water and CO2 d) salt and H2O

7.- In the following reaction ____ + ____ H2O + NaF, what are the reactantsa) KOH + HF b) NaOH + HCl c) NaOH + HF d) KOH + HI

8.- Which of the following reactions represent a neutralization?a) BaCl2 + CaSO4 BaSO4 + CaCl2 b) HCl + NaF NaCl + HFc) Ca(OH)2 + H2SO4 H2O + CaSO4 d) Na + H2O NaOH + H2

9.- Which of the following is not a pH indicador:a) phenolphthalein b) litmus c) red cabbage juice d) Maalox

10.- What is the color of the indicator litmus in a solution that has a pH = 5 ?a) colorless b) red c) blue d) pink

11.- The following are true about antacids excepta) are bases or basic salts b) increase acidity of stomachb) neutralize stomach acid d) all are true