Enclosures: (1) Data Record (2) Data Treatment (3) Environment Impact Research After hours of vigorous examination‚ we have come to the conclusion that calcium chloride (CaCl2) would be the best deicer to use on a naval base over sodium chloride (NaCl) and ethylene glycol (C2H6O2). In order to melt ice‚ deicers lower the freezing point so that the ice melts at lower temperatures. CaCl2 has a freezing point depression of 5°C‚ whereas NaCl has only a 3°C depression‚ and ethylene
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The Many Uses of Baking Soda – Informative Speech 1 The Many Uses of Baking Soda General Purpose: To Inform Specific Purpose: The audience will learn about baking soda‚ the many different ways that it can be used to promote their health‚ cleaning uses around the home‚ cooking‚ in the home uses‚ and enhancing beauty. Thesis: Baking soda is very low cost‚ effective alternative to cleaning around the home‚ promoting health‚ and enhancing beauty. Introduction I) Fellow classmates‚ what if I
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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BOUNCING EGG Can you Make An Egg Bounce? 1. Question: “Can you make an egg bounce?” • Yes!!!! 2. Materials: hard-boiled eggs‚ white vinegar‚ jar or large cup‚ and water. 3. Procedure: • Soak egg in white vinegar for 24-48 hours until all of the shell is dissolved. • Take the egg from the vinegar and soak it in water overnight. • Take the egg from the vinegar and pat dry with a napkin. lightly drop the egg on a table from two or three feet. 4. Result: The egg does not break
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Baking Soda and Vinegar Rocket All the materials you will need are very simple house hold; scissors‚ balloon‚ vinegar‚ baking soda‚ rubber band‚ empty bottle‚ clear wrap‚ straight pin‚ marker‚ thin piece of wood‚ drinking straws‚ and duct tape. One of the first steps is to make the rocket fuel the key component in this rocket. I began with placing ¼ or 1/3 of vinegar in a normal size bottle‚ after that you will make the baking soda bomb. You take a piece of clear wrap and place a good amount of
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Students at NFV middle school are on a journey to figure out a mystery mixture. They have to search through 9 chemicals to figure out which one is it. Seems easy huh? Nope‚ they have to analyze the physical and chemical properties (a very important part in this)‚ the data‚ argue‚ and give important statements on what they think is in the mix. That’s when arguing comes in‚ not arguing on the person but the statement. I think it is citric acid and baking soda. Eighth graders have to find out what
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We are all always dreading that time of the month.. Not only do you feel yucky all over‚ you also have to battle with mood swings‚ hormonal changes and most of all‚ stained undies. You’re faced with the icky task of trying to scrub the mess from your clothes and bedding before stains sets in‚ and you may have to throw away another pair of panties or set of bed sheets. Good news is‚ there are easy ways to get the red stain out fast so you can save your undies and get back to lying on the couch and
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Purpose Identify the mystery powder based on its physical and chemical properties. Hypothesis The physical properties of each powder can help identify what the mystery powder is‚ but the chemical properties will determine the answer. Safety * Wear safety glasses. * Do not taste any substance in this experiment * Iodine solution and some powders are hazardous. * Wash hands when you have finished. Materials * Eye protection * Well plate * 6 small toothpicks for
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The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) | Colorless
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Investigating the rate of reaction between Marble Chips (Calcium Carbonate) and hydrochloric acid Aim. In the investigation I am going to find out how the surface area affects the rate of reaction by measuring the amount of gas produced and weight loss in a reaction between small/large pieces of Marble Chips (Calcium Carbonate) and Hydrochloric acid per minute. Hypothesis. The rate of reaction increases when the surface area of a solid reactant is increased. This happens because by
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