Work for this question needs to be provided in the work sent to Dr. Metz after the exam is complete When 29.6 g of an unknown metal is heated to 100.0 °C and placed into a 60 mL water bath in a coffee-cup calorimeter. If the initial temperature of the water bath was 22.5 °C and the final temperature of the water-metal bath mixture is 26.5 °C. A. What is the specific heat of the metal? (Assume that the water bath density is 1.0 g/mL and its specific heat, Cs, is 4.18 J/g

Work for this answer needs to be provided in the work sent to Dr. Metz after the exam is complete. Be sure to include states of matter and appropriate charges for all equations. Half credit will be given for equations missing states of matter and or charges.  A. For the uncomplete metathesis reaction: provide the balanced molecular equation and net ionic equation. (Be sure to include appropriate states of matter and charges for each ion) (Final answer to this question must be included in the space below to receive credit) Na2CO3 (aq) + Pb(NO3)2 (aq)  →   B. Identify the spectator ions for the reaction listed above. (Final answer to this question must be included in the space below to receive credit) C. Identify the precipitate formed in the reaction above. (Final answer to this question must be included in the space below to receive credit)    

Review the Lewis structure of phosphoric acid. a. How many sigma bonds are represented in this structure of phosphoric acid? (Final answers to this question must be included in the space below to receive credit) b. How many pi bonds are represented in this structure of phosphoric acid? (Final answers to this question must be included in the space below to receive credit)

Fill in the following MO diagram for B2. (diagram below) Work for this answer needs to be provided in the work sent to Dr. Metz after the exam is complete Calculate the bond order for B2. (Final answers to this question must be included in the space below to receive credit) Based on the bond order what type of bond, single, double or triple occurs in B2? (Final answers to this question must be included in the space below to receive credit)

  Which of the following is NOT a result of parasympathetic stimulation?  

  Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels. However, the cells in the cornea and lens (in the anterior segment) are avascular (=no vasculature or blood vessels).  Which is the best explanation for how these cells are maintained?  

  BONUS #8:    Tactile sensation is a combination of touch, pressure, stretch, and vibration.  Which of the following is most likely the receptor type that senses tactile stimulation?   

  Which division functions to conserve energy and replenish the supply of nutrients?  

  BONUS #6:    Receptors that respond to changes in room temperature are found in the skin.  Which of the following pairs of classifications below best fit the receptor type that is being described above?  

  Sympathetic division stimulation causes ________.   (note:  “GI” stands for gastrointestinal and I’m talking about digestive movement thru the GI tract)