(WCSP25) Shown below is the structure of a neurotransmitter that plays a role in the fight or flight response.  Question Answer How many sigma bonds are present? How many pi bonds are present? How many lone pairs are in the structure? What orbitals overlap to form the bond indicated by a? (Select n/a if only one set of orbitals overlap.) , What orbitals overlap to form the bond indicated by b? (Select n/a if only one set of orbitals overlap.) ,   Periodic Table

15. (WCSP25., 8 points) Draw the complete Lewis structures (including lone pairs and formal charges) for the following molecules/ions: a.  NO2- b.  CH4O   Periodic Table   In the box below, enter the total number of lone pairs in the two structures (a+b).

Please write a short description of where you live IN SPANISH answering each of the 5 points below.  Keep your sentences concise and simple.  Please pay attention to proper grammar, spelling, punctuation and accent marks.  Please do not leave this section blank.  50% will be graded for completion, so you will get credit for making your best attempt.  50% will be graded for grammatical accuracy.     Where do you live?  (town, city, state, etc) Do you live in a house, apartment, etc? Do you live alone, with family or roommates? How many rooms are in your house/apartment? What rooms are in your house/apartment?  (list them – living room, kitchen, bedroom, bathroom, etc)

Instructions: Change ALL applicable verbs (11 of them) in this story from the present simple tense (hoy), to the preterite tense (ayer). Do not change or alter the subjects,verbs, or adjectives. The goal is to re-write this story as if it took place yesterday.  Do not just write the verb forms.  Rewrite the whole paragraph in Spanish, paying attention to accent marks, spelling, punctuation and correct grammar. La historia:El día de hoy es muy interesante. Estoy muy ocupado.  Tengo mucho que hacer.  Primero, me levanto temprano y me preparo para el trabajo. Me baño, me peino, me cepillo los dientes y me visto. Luego, tomo un poco de café y salgo a trabajar.

(WCSP25) We often use theory (valence bond, hybridization, resonance, etc.) to explain experimental data. The molecule below is experimentally determined to have bond angles of exactly 120 degrees.    Based on this information, answer the following questions: a. What is the molecular geometry about the central carbon atom? b. What is the hybridization of the central carbon atom? c. What type of orbital holds the unpaired electron?

18.  (WCSP25., 8 points) Answer the questions about the structure below. a. Give the molecular formula b. Calculate is the molecular weight. c. Calculate the mass percent nitrogen. d. A can of soda contains 34 mg of this compound, calculate the mass of nitrogen consumed. Periodic Table   In the box below, enter the mass percent of nitrogen.

TASK The task is to describe your life as a student and to accomplish that, you are provided with the following guidelines: This is a paragraph not a list of questions. introduce yourself share where you study-name of the school  classes you take (at least 2: if you take one class, you need to make up the second class) number of students in each one of your classes (this information can be made up) professors’ names for each class your schedule (using days of the week and times): Class times share one activity you do when you are not at school End with a farewell 

Which statement is NOT true of the outdoor environment?

Instructions: Choose ONE of the following prompts and write a well-organized essay with a clear thesis statement and specific textual evidence to support your analysis: Option A: Compare and contrast the treatment of father-child relationships in “Barn Burning” and “Those Winter Sundays.” Consider how both texts use point of view, tone, and symbolism to explore this theme. or Option B: Analyze how setting functions as both a physical location and a symbolic element in either “The Veldt” or “A Pair of Tickets.” Discuss how the author uses setting to develop both character and theme. Grading Criteria for Essay: Clear thesis statement (3 points) Effective use of textual evidence (5 points) Analysis of literary devices (5 points) Organization and coherence (4 points) Grammar and mechanics (3 points) Requirements: Write in complete sentences using Standard American English Support all claims with specific textual evidence Cite sources using MLA format Demonstrate understanding of literary terms and concepts covered in class Show critical thinking in analyzing relationships between literary elements

(WCSP25) Rank the molecules (a, b, and c) in order of increasing carbon-nitrogen bond strength.    weakest