it right for her to lie to me for the first 9 years of my life? Tricking children into behaving well in order to receive presents. Isn’t that bribery? Parents say that you should never lie and always tell the truth‚ but the way I see it is‚ they have gone against their word and become a hypocrite. On the other hand they could be enhancing enjoyment. But I know‚ even now Santa is not real my enjoyment at Christmas has not changed. Therefore Christmas should be banned because lying is sinful and
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1. You are looking at a Euglena using the x10 objective lens. You rotate the nosepiece around to x40 but the specimen is not visible. Describe what you should do next? Start by using the fine adjustment to attempt to focus on the Euglena. However‚ if it is still not visible‚ return to the x10 objective lens and use the fine adjustment to ensure the Euglena is as sharply focused as possible. Then‚ use the stage control to re-position the slide so the Euglena is directly in the centre of the lens.
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Catalase Experiment Research Question: How does the weight of a piece of liver (0.4g‚ 0.8g‚ 1.2g and 1.6g in this case) affect the amount of gas created after 2 minutes when combined with hydrogen peroxide? Aim: To see find out how the amount of catalase correlates with the amount of gas created when in combination with hydrogen peroxide. Materials: 15g of liver 25 ml of hydrogen peroxide 1 scale 1 bucket 1 100ml graduated cylinder 1 250ml flask with bung 1 50cm tube (able to fix onto top of flask)
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First recognized as a chemical compound in 1818‚ hydrogen peroxide is a clear‚ colorless liquid most often used for cleaning or disinfecting(Britannica‚ 2013). Since pure hydrogen peroxide is unstable‚ it is found in stores as an aqueous solution. The chemical formula for hydrogen peroxide is H₂O₂ which means there are two hydrogen atoms and two oxygen atoms in the compound(Liebeskind‚ 2013). Seed germination is simply the process in which a seedling sprouts from a seed and begins it’s growth. The
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Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Objective: To construct a coffee cup calorimeter‚ measure its calorimeter constant‚ and determine the enthalpy of decomposition and formation of hydrogen peroxide. Background: This experiment is a classic thermodynamics lab. In it‚ we attempt to measure the enthalpy (H) of a chemical reaction. The main obstacle is that this is a quantity that cannot be measured directly. It instead is observed as heat from one substance is transferred
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What could they be seeing under the sea. What was this monstrous animal. Could it be a squid‚ a submarine‚ a giant whale? Let us go down in the deep waters of the earth and see which one it is. “If it was a whale‚ it surpassed in size all those hitherto classified in science.” (the book) Could this animal be a giant squid? “Taking into consideration the mean of observations made at diver’s times- rejecting the timid estimate of those who assigned to this object a length of two hundred feet‚ equally
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heat is given off in the process. Because it gives off heat‚ the temperature cannot be controlled and this would affect my results‚ as there would be more than one dependent variable. I was only allowed H2O2 from the same source‚ which means no fresh source of H2O2 at a controlled temperature. I could not wait for the H2O2 to decompose to a certain temperature because that would take too long. I could not use the catalysts to help the H2O2 to decompose to that temperature for the experiment to start
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rate of enzyme activity Enzymes speed up reactions. They have an area with a very particular shape called the ‘active site’. When the right molecule comes along (substrate molecule) it will fit perfectly into the active site and there will be a reaction. After the reaction the products then leave the active site. This process is often referred to as the lock and key theory as only one enzyme can carry out one type of reaction. The catalase enzyme speeds up the breakdown of hydrogen peroxide into
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Factors Affect The Decomposition Of Hydrogen Peroxide By The Enzyme Catalase Which Is Found In The Liver" Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme‚ it fits into a depression on the surface of the enzyme molecule. This depression is called the active site
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Act 1 Study Guide 1. What do the witches in Scene 1 inform the readers? 2. In Scene 2‚ what does Duncan order Ross to do? 3. In Scene 3‚ why does Shakespeare most likely have the witches speak in rhyme instead of blank verse? 4. How does Macbeth show his ambition and curiosity about becoming king in Scene 3? 5. Duncan says to Macbeth‚ “Would thou hadst less deserved‚” in Scene 4‚ line 18. What does he mean by this? 6. How does Lady Macbeth know that Duncan is coming to
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