Pure copper may be produced by the reaction of copper(I) sul…
Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) → 2Cu(s) + SO2(g) If the reaction of 0.760 kg of copper(I) sulfide with excess oxygen produces 0.310 kg of copper metal, what is the percent yield?
Read DetailsNOTE THAT QUESTIONS 18 and 20 ARE WORTH 5 POINTS EACH For it…
NOTE THAT QUESTIONS 18 and 20 ARE WORTH 5 POINTS EACH For items 18 – 21, imagine that you have been hired by a company with five offices in the United States. The company has offered you the option to move to whichever city you prefer. All cities offer the same opportunities for advancement within the firm. You remember Professor Soster’s class and decide that, since this is a high effort decision, you will figure out what each of these cities has to offer with respect to location, weather, recreational opportunities, ease of meeting others, and cost of living. Furthermore, you know that some of these attributes are more important to you than other ones. As such, you draw the following table: Attribute Importance Weight Office Locations Houston San Diego Pittsburgh Charlotte Boston Location 1 5 10 6 10 6 10 Weather 2 4 8 10 3 7 6 Recreational Opportunities 3 3 6 6 10 10 10 Ease of Meeting Others 4 2 4 10 10 10 6 Cost of Living 5 1 2 6 8 10 9
Read DetailsWhich of the following correctly describes the origin, inser…
Which of the following correctly describes the origin, insertion, innervation, and action of the quadratus lumborum muscle? A) Origin: Iliac crest and iliolumbar ligament Insertion: Transverse processes of L1–L4 and inferior border of the 12th rib Innervation: Subcostal nerve (T12) and anterior branches of spinal nerves (L1–L4) Action: Lateral flexion of the vertebral column, assists in extension, and depresses the 12th rib during forced expiration B) Origin: Transverse processes of L1–L5 Insertion: Superior border of the 12th rib Innervation: Thoracoabdominal nerves (T7–T11) Action: Flexion of the lumbar spine and rotation of the thoracic spine C) Origin: Iliac crest and pubic crest Insertion: Transverse processes of T12 and L1 Innervation: Ilioinguinal nerve and subcostal nerve Action: Flexes and rotates the lumbar spine D) Origin: Sacral promontory Insertion: Spinous processes of L5 Innervation: Spinal accessory nerve Action: Extension and rotation of the lumbar spine
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