Match each polyatomic ion with its correct formula.

When sulfur forms an anion, the ion is named .

A gas absorbs 800 J of heat from its surroundings and does 250 J of work on a piston. Using the First Law of Thermodynamics, determine the change in the internal energy of the gas. Show all calculations.

a. Define latent heat. Briefly distinguish between the latent heat of fusion and the latent heat of vaporization. b. Calculate the minimum amount of energy, in joules, required to completely melt 183 g of silver initially at 38.0°C. The melting point of silver is at 962°C. Its specific heat capacity is 236 J/kg·K and its latent heat of fusion is 105 kJ/kg.

Which of the following mechanisms plays the largest role in mechanically propelling blood back to the heart during dynamic exercise?

During prolonged exercise, which combination of physiological changes contributes most directly to a rightward shift of the oxyhemoglobin dissociation curve and reduced hemoglobin affinity for oxygen?

Match the gastrointestinal function disorder with the common clinical manifestations.

The complete combustion of a hydrocarbon produces…

2A. In a school, 250 students were surveyed about their participation in extracurricular activities. The survey results showed: 140 students are in the drama club. 110 students are in the music club. 60 students are in both the drama club and the music club. (a) How many students are only in the drama club? (b) How many students are only in the music club? (c) How many students are not in either the drama club or the music club? Show all your work don’t just write the answers.   2B. A student is studying for two different exams. The probability that the student will study for the math exam on any given day is 0.7, and the probability that the student will study for the history exam on any given day is 0.5. These events are independent. (a) What is the probability that the student will study for both exams on the same day? (b) What is the probability that the student will not study for either exam on the same day? Show all your work don’t just write the answers.                (2 points)   2C. Data Set is given as: 54, 62, 75, 82, 89, 56, 73, 68, 77, 80, 84, 79, 72, 65, 58, 63, 67, 85, 76, 81, 64, 69, 78, 83, 87, 70, 66, 74, 71, 90 (a) Draw the Boxplot. Show detail work. (b) Is there any outlier? Show mathematically, not just yes or no.       (5 points)

2A. A college surveyed 200 students about their participation in sports activities. The survey results showed the following: 120 students play basketball. 80 students play soccer. 50 students play both basketball and soccer. (a) How many students play only basketball? (b) How many students play only soccer? (c) How many students do not play either basketball or soccer? Show all your work don’t just write the answers.                (3 points)   2B. In a city, the probability that a person will go to the gym on any given day is 0.4, and the probability that the same person will eat at a healthy restaurant on any given day is 0.5. These events are independent.(a) What is the probability that a person will go to the gym and eat at a healthy restaurant on the same day?(b) What is the probability that a person will not go to the gym and will not eat at a healthy restaurant on the same day?  Show all your work don’t just write the answers.                (2 points)   2C. Data set is given as:  72, 85, 91, 88, 95, 67, 78, 84, 77, 89, 73, 68, 82, 90, 76, 85, 79, 92, 87, 94, 83, 74, 81, 86, 80, 89, 71, 93, 88, 84 (a) Draw the Boxplot. Show detail work. (b) Is there any outlier? Show mathematically, not just yes or no.       (5 points)