Artículos de revistas
ACID-BASE REACTIONS: CONCEPT, REPRESENTATION AND GENERALIZATION FROM THE ENERGY INVOLVED IN TRANSFORMATIONS
Fecha
2012Registro en:
QUIMICA NOVA, SAO PAULO, v. 35, n. 10, pp. 2072-2075, JUL, 2012
0100-4042
10.1590/S0100-40422012001000031
Autor
Pastre, Ieda Aparecida
de Almeida Plicas, Lidia Maria
de Oliveira Tiera, Vera Aparecida
Custodio, Juliana Vieira
Leite Agostinho, Silvia Maria
Institución
Resumen
ACID-BASE REACTIONS: CONCEPT, REPRESENTATION AND GENERALIZATION FROM THE ENERGY INVOLVED IN TRANSFORMATIONS. Undergraduate students on the first year of Chemistry Courses are unfamiliar with the representation of acid-base reactions using the ionic equation H+ + OH- -> H2O. A chemistry class was proposed about acid-base reactions using theory and experimental evaluation of neutralization heat to discuss the energy involved when water is formed from H+ and OH- ions. The experiment is suggested using different strong acids and strong base pairs. The presentation of the theme within a chemistry class for high school teachers increased the number of individuals that saw the acid-base reaction from this perspective.