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How many chambers does the human heart have?    

Which is the strongest acid among the following?

The product of reduction of an aldehyde with NaBH4 is?

The free radical chlorination of toluene primarily occurs at which position?

¡Caos en el carnaval! The following is a fictitious story of a streak of bad luck in the Carnaval festivities of Veracruz, Mexico. Given the different options on how to conjugate the verbs of the story in the imperfect tense, choose the one that best fits the story.     Hace unos años que terminó la racha de mala suerte (streak of bad luck) en el Carnaval de Veracruz, México. Las personas que vieron todo esto dicen que las calles siempre (7) —— (estar) llenas de música y alegría. Por muchos años, todo (8) —— (salir) mal. Los músicos (9) —— (tocar), pero los trompetistas (10) —— (fracasar) cada nota, a los cantantes les (11) —— (fallar) su voz. Un niño dijo, “yo (12) —— (correr) por las callas lazando confeti que (13) —— (terminar) en la comida de todos.” El cocinero (14) —— (cocinar), pero los letreros (15) —— (estar) mal, y la gente se (16) —— (confundir), así (17) —— (ser) las cosas.   A pesar de los problemas, todos seguían bailando y riéndose. Ya es casi una tradición.  Hay algunas personas que dicen que el Carnaval no es Carnaval sin que algo malo pase.    Choose the correct verb to fill in blank #7. 

Which reaction is characteristic of conjugated dienes but not isolated alkenes?

The 1,2-addition product of HBr to 1,3-butadiene (kinetic product) is?

The reaction of a primary aliphatic amine with nitrous acid gives?

Given the family pedigree image, indicate the familial relation between the first individual to the second individual in each question. EXAMPLE: Vicente to Rosa Maria: Vicente es el esposo de Rosa María. Image Transcript The image is a family tree with three levels. The top level is Vicente (male) and Rosa María (female), who are married. They have two daughters: María Elena and Carmen. María Elena (female) is married to Alejandro (male). They have three children: Camila (female), Jaime (male), and Sami (male). Carmen (female) is married to Samuel (male). They have two children: Esteban (male) and Rosalía (female).   Sami es [word1] de Vicente. (1 point) Carmen es [word2] de Alejandro. (1 point) Jaime es [word3] de Esteban. (1 point) Carmen es [word4] de Camila. (1 point) Samuel es [word5] de Vicente. (1 point) María Elena es [word6] de Sami. (1 point)

For up to 5 bonus points, briefly describe the Social Security Legacy Cost/Debt (2 pts) and identify the three proposed changes to Social Security financing proposed by Diamond and Orszag to address Social Security’s legacy debt (3 pts).