A sample of sodium hydroxide, NaOH(s), dissolves in water, releasing heat to the surrounding water, and causing the temperature of the water to rise by 20 °C. If the heat change for the reaction is –300 J, what is the heat change for the surrounding water?
Author: Anonymous
Consider the following equilibrium reaction: N2(g) + O2(g) ⇌…
Consider the following equilibrium reaction: N2(g) + O2(g) ⇌ 2 NO(g) ΔHrxn = +32.3 kJ In which direction will the following changes cause the equilibrium to shift, respectively? add N2 add NO raise the temperature [Note: Right is (R) or Left is (L)]
Choose the corresponding formal command for each sentence. …
Choose the corresponding formal command for each sentence. Dormir bien en el Hotel Intercontinental.
Choose the correct Direct Object Pronoun to answer the quest…
Choose the correct Direct Object Pronoun to answer the question. ¿La dueña conoce a todos los empleados, incluidos nosotros? Sí, ella ______ conoce.
Choose PRETERITE or IMPERFECT to complete the paragraph. …
Choose PRETERITE or IMPERFECT to complete the paragraph. Estela (1) [1] leyendo un libro cuando Tomás la (2) [2] por teléfono. Tomás la (3)[3] a ir a un restaurante esa noche. Estela (4)[4] mucha tarea que hacer, pero (5) [5]la invitación de Tomás. Tomás (6) [6] a las ocho y ellos (7)[7]. (8)[8] buen tiempo y ellos (9)[9] caminar al restaurante. Mientras (10)[10] por la calle, se (11)[11]cariñosamente. Entonces, Tomás (12)[12] un regalo pequeño de su chaqueta y se lo (13)[13] a Estela. Estela (14)[14] el regalo rápidamente. (15)[15] un reloj. La semana pasada Estela (16) [16]su reloj y por eso (17)[17]un reloj nuevo. Estela le (18)[18]:“¡Muchas gracias”! a Tomás y ellos se (19)[19]y se (20)[20] allí en la calle. Entonces, (21)[21] al restaurante y (22)[22] una cena excelente.
Complete the paragraph with the appropriate preterite form o…
Complete the paragraph with the appropriate preterite form of each verb to find out what happened. (HINT! All of theses are irregular verbs in the preterite tense.) Roberto [1] (decir) que se levantó temprano el sábado pasado y [2] (ir) al centro con su amigo Gonzalo. Los dos hombres [3] (traer) sus tarjetas de crédito. Cuando Roberto entró a su tienda favorita, [4] (saber) inmediatamente que muchas cosas estaban en rebaja. Él [5] (estar) en la tienda por tres horas. ¡Le encanta gastar dinero!
Choose the most logical response to answer the questions.
Choose the most logical response to answer the questions.
The following times are expressed on a 12-hour clock. Write…
The following times are expressed on a 12-hour clock. Write the numerical abbreviations of the times listed below. Il est onze heures moins vingt. _________
In assessing alternatives for a decision, managers typically…
In assessing alternatives for a decision, managers typically use all of the following criteria EXCEPT
Unilever sells different products using a different marketin…
Unilever sells different products using a different marketing approach in Great Britain than it uses when marketing these products in the United States. This is an example of