In Time Movie: Reaction and Reflection Paper When I watched this movie”‚ it really reflects me a lot because there are so many lessons I’ve learned. Even though it is a Sci-Fiction movie I had a great time watching it because I’ve learned many things on how we should spend our time wisely because I believe in the saying “ time is gold” that one should apply to his/her life. It teaches me to cherish most of your time with the most important persons in your life and don’t waste it. This is to when
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521 Exam I‚ Spring Quarter 7:30 - 9:00 PM‚ 25 April 2000 NAME 1. [10 points] What are the concentrations of HSO− ‚ SO2− ‚ and H+ in a 0.20 M KHSO4 solution? (Hint: 4 4 H2 SO4 is a strong acid; Ka = 1.3 × 10−2 for HSO− .) 4 2. [15 points] Calculate the pH of 1.00 L of the buffer 1.00 M CH3 COONa/1.00 M CH3 COOH (pKa = 4.74) before and after the addition of (a) 0.080 moles NaOH and (b) 0.12 moles HCl. (Assume there is no change in volume). 3. [10 points] The following reaction is found
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1. Background of the Literary Piece Once Upon A Time by Gabriel Okara The poem is written by Gabriel Okara‚ a Nigerian poet. He may have written the poem so that other people may understand how an African person deals with the western ideas. The poem is like a clash of cultures and how the speaker finds a way to adapt to the situation‚ the poem also gives a description about how the speaker wants to forget the ideals of these people. 2. Summary The poem‚ is depicting a man‚ maybe of old age (or
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The Rate of a Reaction The area of chemistry that deals with the rate or speed of chemical reactions is known a chemical kinetics. The word “kinetic” is derived from the Greek name kinitikos that means movement or motion. In the present context‚ the kinetic means the reaction rate or rate of a reaction that is defined as the change in concentration of a reactant or a product with time (M/s). Chemical reaction can be represented by the following general equation. Reactants Products It is very important
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Reaction Order and Rate Law Name Data‚ Calculations‚ and Questions A. Calculate the initial and final concentrations as needed to complete Tables 1 and 2. Data Table 1: Varying the Concentration of 1.0 M HCl | | | | |Concentrations | | |# Drops |# Drops |# Drops |Initial
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Factors Affecting Rates of Reaction Thanks to Michelle Craig Manitoba Curriculum Chemistry Grade 12; Kinetics‚ Topic 3-08 Objectives To design short experiments to investigate and explain qualitatively using collision theory the relationship between reaction rate and temperature‚ concentration‚ catalyst‚ and surface area. Apparatus and Materials Available 3 x 250 mL beakers magnesium ribbon (1 cm) 3 x test tubes magnesium powder test tube rack mossy zinc 10 mL graduated
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I think that Jane Elliot was a woman before her time. What she put together to teach the children about discrimination was brilliant. I not only watched the first and second parts in class‚ I watched all six parts on You Tube. I laughed and cried watching all six parts. I see that just putting the idea into ones mind can make things happen. I think the most upsetting part of this experiment is that if you place children in the subordinate group they immediately did poorly.I feel that more people
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Erin Bolton Chemistry Lab Report April 29‚ 2015 Lab: Reaction Rates Introduction: In this experiment we studied the reaction of potassium persulfate‚ K2S2O8‚ with potassium iodide‚ KI. All chemical reactions have an energy barrier to overcome before the reaction will proceed. We will record data based on the concentration‚ temperature and catalyst for each experiment. Once this has been completed it will be graphed. Procedure: Due to the chemicals being used having hazard gloves are used
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affect its reaction time. The purpose of this experiment is to determine if dissolving reactions are affected by waters temperature. I believe that if the H2O temperature increases‚ then the Alka-Seltzer tablet will dissolve faster because the hot water molecules will move faster colliding with the tablet particles. Water will be the independent variable due to the fact is will always stay in its same form throughout the experiment. The Manipulated variable will also be the water‚ since I will be changing
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shifts to the right hand side to make more until eventually all of the acid is able to react. This does‚ however‚ absorb energy as bonds are being broken to dissociate the weak acid. CH3COOH H+(aq) + CH3COO-(aq) approx 99% approx 1% Conductivity Any solution’s ability to conduct electricity is conditioned by the concentration of ions it contains. A strong acid has more ions than a weak one‚ and so it’s solution will be a better electrical conductor than a weak acid. The same
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