WORKSHEET MOLE By Sir Shah Murtaza Q1. Potassium reacts with water as shown in the equation. a. Describe what you would see when potassium reacts with water. b. A sample of 0.195 g of potassium was added to 500 cm3 of cold water. When the reaction was finished‚ 100 cm3 of 0.100mol/dm3 hydrochloric acid was added to form solution X. (i) Calculate the number of moles of hydroxide ions formed when the potassium was added to water. (ii) Calculate the
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that can be used to encourage children to read.” The natural purpose of language is the expression and communication of meaning in our daily living. It enables us to express our needs‚ share our experiences and learn from each other. Language is the medium of thought and of learning. Language is needed to communicate with one another‚ this is the social aspect of language‚ which unites human beings by a common bond. Language not only fuses men into groups and nations‚ but it is central point of difference
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60/500=0.12=12% d. A randomly selected man would choose either the camera or the bike? 177/239=0.74=74% 2. a. Which part(s) of question 1 above deal with joint probability? C‚b. Which part(s) deal with conditional probability? B‚D The Standard Normal Curve 3. In a recent year‚ about two-thirds of U.S. households purchased ground coffee. Consider the annual ground coffee expenditures for households who purchase coffee‚ assuming that these expenditures are approximately normally distributed
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Is language an instinct? Before discussing this question‚ the definition or area of language should be considered first. Many introductions to the study of language‚ linguistics‚ avoid giving a definition‚ or consider it to be so obvious that it does not need to be defined (Harley‚ 1995). According to Gleason and Ratner (1998)‚ one of the properties attributed to language is that it is a uniquely human behaviour. Pinker (1994:334) points out that: nonhuman communication systems are based
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A Normal Day-Written by Daniel Uyanneh Everyone has their own opinion about secondary school‚ Some people think that secondary school is as easy as standing on your own two feet‚ some people even say that it isn’t that tricky. However when you’re a child in the 21st century it is harder than you may think. Today was a typical day in English class the luminous sun was high in the dismal glaucous sky. My mood was like the weather inside I felt very tiresome like the dismal sky and on the outside
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Pencil Long ago I lived with my family and friends in a beautiful deep dark forest…Oh! what fun we had..The wind would whistle through our branches where birds built their nests.Squirrels hid their nuts in the holes in our barks‚while small animals and snakes wound in and out at the base…But in the name of civilization‚wood cutters came and began clearing the forest…They began at the outskirts..We could hear the screams of our friends and relatives..Soon it was our day..The lumbermen came and hacked
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“What‚ what?” he exclaims. Pellinore is the first knight that King Arthur meets in T.H. White’s The Once and Future King. He is a rambling‚ bumbling man that is constantly hunting the Questing Beast‚ a seemingly unattainable beast. With his strange language‚ wandering train of thought‚ and obsession with the Questing Beast‚ King Pellinore is an eccentric character that adds a sense of humor to the first book of White ’s novel. The knight is sitting on a majestic white horse in armor that gives him
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Components of a Table with an example 2 2 10 6 a) Describe the characteristics of Normal probability distribution. b) In a sample of 120 workers in a factory‚ the mean and standard deviation of wages were Rs. 11.35 and Rs.3.03 respectively. Find the percentage of workers getting wages between Rs.9 and Rs.17 in the whole factory assuming that the wages are normally distributed. Characteristics of Normal probability distribution Formula/Computation/Solution to the problem 3 4 10
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Statistics Math 1342 Final Exam Review Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace or a heart. 17 7 3 4 A) B) C) D) 52 52 13 13 Answer: D 2) The events A and B are mutually exclusive. If P(A) = 0.7 and P(B) = 0.2‚ what is P(A or B)? A) 0.5 B) 0.9 C) 0.14 D)
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At Least One Parent Should Remain in The Home Until The School Years For Normal Development Of Their Child Is Parental Care Better Than Childcare Centres In today’s highly competitive society‚ parents are increasingly pressured to quickly go back to work after the birth of their child‚ (Cohen & Bianchi‚ 1999; Crosby & Hawkes‚ 2007) in due of the need for financial stability. This is of particular interest as previous evidence suggests that returning to work within a year of the birth is
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