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Free Response Question 3: Use the reaction below to answer t…

Free Response Question 3: Use the reaction below to answer the following questions: Reaction: 2 C4H10 + 13 O2 → 8CO2 + 10 H2O    ΔH = -5755 kJ Is the reaction exothermic or endothermic? How much heat is produced when 3.25 moles of C4H10 (butane) react completely? How many grams of butane are needed to produce 9750 kJ of heat? Enter your answer for parts A-C below. Include proper significant figures and units for your answers. Show your work and answers for this problem on your scratch paper. Upload the scratch paper within 30 mins of completing the exam.

Complete the following reactions by predicting the products…

Complete the following reactions by predicting the products and then balancing the reactions. For the double displacement reactions, use the solubility rules to determine the phase of each product. If no reaction occurs, write “No Reaction.” Include the phases for all substances.  Enter the completed and balanced equations below. Include phases and use the Canvas formatting tools to enter subscripts and arrows. Points will be deducted for incorrect formatting.  LiNO3(aq) + Na3PO4(aq) → Na2SO4(aq) + Ca(OH)2(aq) → Al(s) + N2(g) →

Consider a small company of 100 customers, of which 60% are…

Consider a small company of 100 customers, of which 60% are men. The CEO asks one of the employees to find out the customers’ level of satisfaction by interviewing a few of them. The employee interviews 10 women by treating them to coffee at Starbucks and discussing the company’s product with them. He reports that 9 of them really like the product. Which of the following statements would be true?