other metal salts. QUESTIONS: Q1: Were there any main difference between the chloride salts and the nitrate salts? If there was please comment on what it was Yes‚ I had observed some difference between the colour produced from the chloride and nitrate salts present in one flame test. The strontium flame admitted both a similar orange colour‚ but the strontium nitrate has a much more vibrant dark orange than the strontium chloride. Q2: Suggest reasons why the experiment tested both nitrate
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2013 Diffusion Lab Research Question: How does the amount of water in a beaker affect the rate at which food coloring diffuses to the bottom of the beaker? Independent Variable: Height of water in beaker (Inches) Dependent Variable: Rate of diffusion (seconds) Controlled Variables: * Size of beaker * Temperature of water (23°C) * Type/color of food coloring * Person Timing * Environmental conditions Materials: * Beaker(well over 4 in tall) * Food coloring * Tap
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Lab: Energy Stored in Food Background Questions (5 points each = 10 points): 1. What happens to the molecules of the food that we eat during digestion? 2. What type of metabolism is this? Background information: In this lab we will attempt to set a variety of different types of food on fire and capture the heat energy that is given off. The heat energy from the burning comes form the energy stored in the chemical bonds of the food. The more energy in the bonds‚ the more heat the food will
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RESEARCH QUESTION How does the glucose concentration effects the time taken for the potassium permanganate to decolourise from purple to colourless ? HYPOTHESIS The higher the glucose concentration the shorter the time taken for the potassium permanganate to decolourise from purple to colourless. VARIABLES VARIABLE | UNITS | RANGE | METHOD FOR CONTROL | INDEPENDENT VARIABLE-Concentration of glucose solution | % | 5%10%15%20%25%30% | Different glucose concentration are tested | DEPENDENT VARIABLE-The
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gain from the pictures taken at the scene? The v-shaped pattern often occurs in the area where a fire originated‚ so it is possible that the space heater was the fire of origin (tests needs to be run to confirm). The crazed glass (by lab results) indicated that crazing is the result of rapid cooling of hot glass by the application of water. The protected surface shows there was an object on the floor protecting the area‚ and there is the shape of a body that was there during the fire
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based on tabloid content” 1. Introduction News has always been a matter of commerce‚ and it has always entertained as well as informed (Barkin 2003‚ p.64). News Ltd‚ undeniably‚ has focused on tabloid content in order to derive an enormous benefit from it. To rise fame‚ broadly speaking‚ News Ltd has exploited the interest of the target audiences‚ crucially by appealing to their human side. This is to say that the success of New Corporations is mainly contributed by tabloid contents. 2. What is tabloid
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Module Two: Lab Questions 1. Why was the Crippen case important? It was the first trial by media and the first to be dominated by forensic science. 2. What was Crippen accused of? Why was he accused of this crime? He was accused of killing his wife by poison and dismembering her body. There was evidence that he killed someone and she was nowhere to be found. 3. Why do you think people were so interested in Crippen’s case? He was executed and they’re not sure if he actually killed her. 4
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that : We are not eating food anymore‚ we are eating food like products. 3) People are looking for a result that is superficial. 4) Diets don’t work because they are temporary 5) The majority of the authors of this film all used to be obese 6) It’s not just what you are eating‚ it is what it’s eating you 7) We are programmed to put on fat. 8) The people in modern civilization consume a high amount of calories and very low amount of nutrients. 9) Man made food like bread and sugars trick
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Objective: One objective was to figure out if the burnt Mg ashes weigh more than the product which is Magnesium Metal. Another objective was determining the formula of the compound that results when Magnesium and Oxygen react. Theory: The purpose of this lab was to confirm the chemical formula of magnesium oxide by comparing the masses of pure magnesium solid prior to any reaction and magnesium oxide solid after a reaction between all of the magnesium and oxygen from the air when heated from a Bunsen burner
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Pre – Lab Questions 1. A decomposition reaction may be defined as any reaction in which one reactant‚ a compound‚ breaks down to give two or more products. Write the balanced chemical equation for the decomposition of water to its elements. 2H2O(l) 2H2(g) + O2(g) 2. (a) Assign oxidation states to the hydrogen and oxygen atoms in each substance in the above chemical equation. The oxidation state of H2(g) and O2(g) is zero‚ because they are in their normal state. (b) Based
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