1. Identify the functional group or molecule for each of the following. (3 points) 1. COOH -OH 2. COH -OH 3. COH -OH 1. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) 1. corn syrup (1 point) positive 2. table sugar (1 point) positive 3. unknown 1 (1 point) negative 4. unknown 2 (1 point) negative 5. unknown 3 (1 point) positive 6. unknown 4 (1 point)
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Hydrogen Peroxide & Inorganic Peroxy Compounds Hydrogen Peroxide Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear liquid‚ slightly more viscous than water. In dilute solution‚ it appears colorless. Reactions Decomposition Hydrogen peroxide decomposes exothermically into water and oxygen gas spontaneously: 2 H2O2 → 2 H2O + O2 This process is thermodynamically favorable. It has
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Determining the Percent Copper and Zinc in Pennies from Density Lab Report Procedure: For pre-1982 pennies- Mass 10 pennies‚ record data. Fill a 100mL graduated cylinder to 40mL or enough to fully submerge the pennies with water‚ record the volume in data table. Carefully place the pennies into the graduated cylinder‚ record the final volume of the water in data table. To find the volume of the pennies‚ subtract the final volume from the initial‚ record the data. Repeat this procedure twice more
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Experiment 9 Empirical Formula of Zinc Iodide Objectives Upon completion of this experiment‚ students should have learned: 1. The law of conservation of mass. 2. How to calculate an empirical formula. 3. The concept of limiting reagents. Introduction Synthesis and the determination of empirical formulas are two extremely important parts of chemistry. In this experiment‚ you will synthesize zinc iodide and determine its empirical formula. The molecular formula gives the actual
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primarily combined with oxygen as water. (Oxford Dictionary of English 2015) Advantages of Using Hydrogen as Fuel in
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In this essay I am going to explore what happens in the book of Exodus in the Old Testament. I will also go on to further explain why this event is so significant for the Jewish people. This helps to explain why what happened in Exodus is still remembered and celebrated by those of Jewish faith today all over the world and why it is described as the most significant event in Jewish history. In an introduction to Christian theology‚ Towey discusses the importance of the Exodus “The subsequent account
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What Happens After High School? After completing the survey for my economics course it gave me a career field that I should consider joining based off of my answers to the survey. The field I was given was investigative. I agree with choice because I love to solve puzzles and work with things that makes me have to think to figure it out. Also‚ the investigative field is a good fit for me because the jobs that are involved in this field involve math which is one of my favorite subjects whether it
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dependent on China. So far the Asian country has the biggest IT export share world-wide‚ Earth’s third largest trader‚ second largest economy in PP GDP. Therefore‚ a would-be failure of their market will affect the global economy in a dramatic way. What would be the exact consequences from this downfall‚ we are going to evaluate using the PEST model in the following paragraphs. Political aspect – On the political stage everything
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Whatever Happens‚ Happens for the Best Once upon a time there was an old man called Bob‚ who lived alone in a village. He would go about his business alone‚ even in his old age. He was a nice‚ friendly man who was liked by all the people in the village. Bob had only one son and he moved to a school far away from the village. Many people in the village always felt sorry for Bob‚ they knew he must be lonely. The villagers would always ask Bob if his son would ever return. To all of them‚ Bob would
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aim of this study was to test the rate of reactivity of the enzyme catalase on hydrogen peroxide while subject to different concentrations of an inhibitor. The hypothesis was that hydrogen peroxide will be broken down by catalase into hydrogen and oxygen‚ where a higher concentration of inhibitor will yield less oxygen‚ resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed that less gas was
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