please answer all 3 questions Question 6This gives us 7 Calories/gramproteinO carbohydratesQuestion 13ONOfatWhich of the following elements (only symbols are given) are NOT on of the mainelements in fertilizers?KSnone of the other answers are correctPQuestion 15What is the device at the ISU rec center that thoroughly measures bodycomposition?The Bod PodThe InBodyDEXA scanO Underwater weighing

Few questions based general chemistry. Based on the calories of energy release, fertilizer…

Question 6 This gives us 7 Calories/gram O protein O carbohydrates O none of the other answers are correct Question 13 Which of the following elements (only symbols are given) are NOT on of the main elements in fertilizers? ON fat OK O S OP Question 15 What is the device at the ISU rec center that thoroughly measures body composition? The Bod Pod The InBody DEXA scan Underwater weighing

Question 6 This gives us 7 Calories/gram O protein O carbohydrates O none of the other answers are correct Question 13 Which of the following elements (only symbols are given) are NOT on of the main elements in fertilizers? ON fat OK O S OP Question 15 What is the device at the ISU rec center that thoroughly measures body composition? The Bod Pod The InBody DEXA scan Underwater weighing

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Ethylene (CH₂CH₂) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10¹0 kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH₂CH3) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 35.0 L reaction tank with 35.0 atm of ethane gas and raises the temperature to 400. °C. He believes K₂=0.20 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Note for advanced students: the engineer may be mistaken about the correct value of Kp and the mass percent of ethylene you calculate may not be what he actually observes.
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