Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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Ivan Gonzalez‚ Angelo Macabuhay‚ Michaelangelo Manlangit‚ Luis Alfonso Morales‚ Don Niel LSGH 2013-2014 The Problem and Objective: Stain removers in the market today have multiple health hazards that could endanger our health. Dangerous chemicals can cause irritation‚ health problems‚ dangerous fumes and other complications. The group aims to find a new alternative material for the removal of stains. The group also aims to find a cheaper alternative to other stain removers in the market through
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Deja Holliday SPT 1113GT Public Speaking 1 11/10/2013 Organization Pattern:Topical Title: How to whiten your teeth with baking soda Specific Purpose: To inform my audience with information on how to whiten your teeth with baking soda Central Idea: Whitening your teeth with baking soda. Introduction: A. Attention Getter: Pretty pearly white teeth are always an eye catcher. B. Establishes Credibility: I will appear in my finest attire and deliver you guys a well prepared speech
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how temperature would affect endothermic reactions compared to exothermic reactions. An endothermic reaction absorbs energy in the form of heat. This reaction feels cold because it is taking heat away from its surroundings. It also releases gases. An exothermic reaction is a reaction that releases energy as heat. Since the energy is released‚ the exothermic reactions feel hot. Methods/Materials I did three experiments. I mixed lemon juice and baking soda‚ammonia and vinegar‚ and finally‚ hydrochloric
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Reliance Baking Soda Write-Up 1) There are a number of alternatives to reach the objective of a 10% increase in profits for Reliance Baking Soda. a. The first alternative is to increase the price of the product. The suggested retail price for each box of RBS is 10% higher than the actual retail price. I would suggest increasing the price by between 5-10% for the 8 oz. boxes and the 1 lb. boxes‚ as these are the most successful sizes according to the sales volumes in exhibit 5. Additionally‚ 80%
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OVOS Citrus Juicer Lemon Squeezer Review OVOS Citrus Juicer Lemon Squeezer Are you tired of replacing your juicer or lemon squeezer every few weeks? Does the handles of your juicer bend or break with little pressure? If that is the case you should try out this amazing squeezer from OVOS. It is made up of 304 stainless steel and has a silicone handle variant too. With a reasonable price this product is easy to use and maintain. To get the best and tasty juice‚ all you need to do is cut the fruit
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Nate R. Exploding with Vinegar‚ Baking Soda‚ and Science! Question Do different water bottle brands have different strengths when it comes to exploding with a chemical reaction from baking soda and vinegar? Variables Independent/Manipulated Variable: Brand of water bottle Dependant/Responding Variables: Amount of time it takes for bottle to explode Whether or not bottle explodes Controlled Variables: Amount of vinegar used in bottles Amount of baking soda used in bottles Same stopwatch used Same
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51 Amazing Uses for “Baking Soda " * Baking Soda‚ aka sodium bicarbonate‚ helps regulate PH—keeping a substance neither too acidic nor too alkaline. When baking soda comes in contact with either an acidic or an alkaline substance‚ it’s natural effect is to neutralize that pH. İt has the ability to retard further changes in the pH balance‚ known as buffering. ( You can drink 1 tea spoon Baking So da with a cup of water for Your Body’s Ph Balance ) ** Besides showing kindness to aquatic life
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cups or drinking glasses • Permanent marker & Safety goggles. • Isopropyl alcohol • Distilled water • Grape soda • Lab notebook. Procedures: 1. In the lab notebook‚ you would have to make data tables like Table 1 and Table 2. You would have to put down data 2. Get out three plastic cups or drinking glasses. Pour some 70% isopropyl alcohol into one‚ distilled water into another‚ and grape soda into the last cup. 3. Get out six more plastic cups and label them Waste‚ 1st Fraction‚ 2nd Fraction‚ 3rd
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and ounces. Many other units exist. The equation for baking soda and vinegar is CH3 COOH + Na HCO3 -> CH3 COONa + H2CO3 . This equation effects pressure and volume by rising the temperature and wanting to get out of the object. The researchers hypothesis is that when the volume decreases the temperature rises and the object inflates because it wants more space. II. Materials Baking soda Vinegar Zip lock bag String III
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