(08.01 MC) Which of the following describes a property of water that helps sustain marine life forms?

(08.02 HC) How many liters of 4.0 M NaOH solution will react with 1.8 mol H2SO4? (Remember to balance the equation.)H2SO4 + NaOH → Na2SO4 + H2O

(08.05 MC) A solution has a of 1 × 10−12 M. What is the of the solution?

(07.02 MC) During a reaction, ΔH for reactants is −750 kJ/mol and ΔH for products is 920 kJ/mol. Which statement is correct about the reaction?

Opioid and opiate overdoses currently account for _____ of overdose deaths in the United States.

(06.01 LC) Based on the kinetic molecular theory, which of the following statements is correct about the particles in a sample of gas?

Verbos. This is an email from Jorge to his friend Jessica. He writes about his stay in Sevilla, Spain. Help him complete it by filling in the blanks with the present tense of the most logical Spanish verb for each sentence. (12 x 2 pts. each = 24 pts.) Hola Jessica: ¿Qué tal? Yo (1) (estar/gustar) muy bien. Me (2) (llegar/gustar) mucho estudiar español en Sevilla. Yo (3) (estudiar/caminar) mucho español todos los días. Las clases (4) (comprar/terminar) a las 2 de la tarde. A las 2:30, yo (5) (tomar/regresar) al apartamento. Mi compañero de cuarto, Germán, (6) (trabajar/cenar) en la universidad. Él (7) (enseñar/desayunar) literatura en la Facultad de Filosofía y Letras. Por las tardes, Germán y yo (8) (llevar/hablar) mucho para practicar español oral. Por las noches, nosotros (9) (mirar/viajar) la televisión. Bueno, ¿y tú? ¿Cómo (10)   (estar/explicar) tú? ¿Qué día (11) (bailar/llegar) tú a España? Yo (12) (esperar/preguntar) tu visita. Adiós, Jorge

(06.03 LC) Based on Gay-Lussac’s law, which of the following statements is true for an ideal gas at constant volume and mole amount?

(07.02 LC) Read the information in the table below: Reaction A B Description ΔH (reactants) always less than ΔH (products) ΔH (reactants) always more than ΔH (products) Which type of reaction is represented by A?

(07.05 MC) The graph shows a sample of gas when it is hot, cold, and at room temperature.Which statement is correct about curves A and C?