Assignment 20 A 1- Which of the following oxidation numbers in the species given is incorrect? a) SO32−; S +4‚ O −2 b) ClO3−; Cl +5‚ O −2 c) H2C2O4; H 1+‚ C 3+‚ O 2− d) H2O2; H +1‚ O −1 e) Ca(ClO)2; Ca +2‚ Cl +2‚ O −2 f) Zn(NH3)6Cl2; Zn 2+‚ N 3−‚ H 1+‚ Cl 1− (Cl is +1 in this compound. Ca: 1 × (+2) = +2. O: 2 × (−2) = −4. Charge on the compound = 0; therefore‚ (+2) + (−4) + 2 × Cl = 0. The charge on Cl is 1+.) 2- A voltaic cell is constructed. One electrode compartment consists of a zinc strip placed
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Critical Thinking Stanley Milgram Experiment I feel the reason the Milgram Experiment subjects were lacking the moral and critical thinking of how they reacted to the experiment was a multitude of things such as. The subjects felt they had to because they were being told to by “people of authority” They also felt that since they were participating in the experiment and they were only doing “as told” then they were okay to proceed. Some also stated that do to the trust they had for the school and
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DESIGN AN EXPERIMENT: THE BIGGEST BLOWER EXPERIMENT Design an Experiment: The Biggest Blower Experiment Problem Statement: You have a pack of Hubba Bubba Bubble Gum. Does the amount of sugar in this gum affect the size of the bubble you blow?? Hypothesis: I think that sugar in any gum affects the size of the bubble you blow. I think this because I was watching “The Next Great Baker” and someone was melting sugar and when it cooled off a little he used a balloon blower to make bubbles out of
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Sometimes the data we need may not be available from internal or external sources. In such cases‚ we may have to obtain data by conducting our own survey or experiment. In a survey‚ we do not exercise any control over the factors when we collect information. For example‚ if we want to collect data on the money various families spent last month on clothes‚ we will ask each of the families included in the survey how much it spent last month on clothes. Then we will record this information. A survey
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brand of glue * The type of surface Dependent Variable: * The strength of the glue Controlled Variables: * Same amount of glue (one swipe) * Same amount of time to dry * Same person conducting experiment * Same time of day * Same amount of experiments * Same Net Weight (21g) * Same brand of surfaces * Same person timing (Jet) * Same time and place of investigation * Same length of surface Plan Aim: To see which brands of glues stick the
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1. How much of our global energy supply do nuclear power‚ biomass energy‚ and hydroelectric power contribute? How much of our global electricity do these three conventional energy alternatives generate? Biomass provides 10.8% of global primary energy use‚ nuclear power provides 6.5%‚ and hydropower provides 2.2% of global primary energy use. Nuclear power generates 15.8% of the world’s electricity‚ and hydropower generates 15.9%. 2. Describe how nuclear fission works. How do nuclear plant engineers
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Andrew Poli 7A Alexander The Great Journey to the end of the Earth
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Nonverbal Experiments Everyone will do Experiment #1 – A Mute Point Choose 3 additional experiments – follow the directions and have fun! 1. A mute point – We will all do this on the same day! You can not talk for one entire day. Document your frustrations‚ your “oops” moments‚ reactions from others‚ and if any new revelations came about from not speaking. Make sure you wear your sign! 2. Disregarding the Norm Go to a crowded public space. Intentionally go against the grain in some
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amount of HCl that did not react with the calcium carbonate. Apparatus Mortar and Pestle Standard Lab Balance Hot Plates 200ml beaker Measuring cylinder (10ml‚ 100ml) Pipette Burette Conical Flask Bunsen burner Any reagents used in this experiment Eggshell NaOH 1moldm3 HCl 1moldm3 Phenolphthalein Procedure 1. Each student should obtain one egg and the necessary glassware from the side bench. 2. Break the egg into a beaker. Add water to the egg and stir before pouring down the drain
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Osmosis Lab Report The essential focus of the experiment was to acquire data for the mass change resulting from osmosis in order to determine the carbohydrate solution of the carrot cells. The carrots were a vegetable used within the experiment with a carbohydrate solution around .5 M. The hypothesis is if there are carrots in different carbohydrate solutions then there will be a percent change in mass. The carrots have large vacuoles that hold water‚ this allows the mass to increase when the hypertonic
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