1. America’s first trained nurse. -LINDA A. J. RICHARDS 2. The first bird domesticated by man. -ROCK DOVES 3. What method of arranging elements into related groups was invented by dimitri Mendeleyev -PERIODIC ARRANGING 4. What’s short for "Light Amplification by Stimulated Emission of Radiation"? LASER 5. What ya‚ Sohaira M. COMP FNDis the only domesticated animal not mentioned in the bible? -CAT 6. What is the longest river in the world? -NILE RIVER 7. What’s
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There are many different ingredients in a kitchen that causes a chemical reaction with baking soda. This experiment was designed to test 4 kitchen ingredients(Omega oil‚ water‚ lemon juice‚ and vinegar) mixed with baking soda‚ to see which one will cause a balloon to expand. It was hypothesized that baking soda mixed with lemon juice and vinegar would cause the balloon to expand. Using these ideals the experiment was completed and the data was recorded. It was decided that the hypothesis was correct
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As stated previously the purpose of this experiment was primarily based on about chemical changes. Many chemical changes are viewed through a screen‚ or read from a book. In this experiment‚ chemical changes are viewed directly from the eyes of the scientist. The procedure first begins by gathering all needed materials. Next‚ laying the first powder on four wells‚ followed by the next powders‚ each powder was placed on four wells. The liquids were then placed on each powder using the four droppers
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All these functions are based off of chemicals and I am here to talk to you about chemical warfare. Preview Statement: What is Chemical warfare‚ how chemical warfare works‚ and the advantages and disadvantages of chemical warfare. I: What is Chemical Warfare A: Definition of chemical warfare 1: warfare with asphyxiating‚ poisonous‚ or corrosive gases‚ oil flames‚ etc. 2:Munitions and Agents B: Types of chemicals used in chemical warfare. a: Choking agents
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Juliana Amenta 2/18/13 Mr. Zastrow Chemical Warfare During World War 1 The first World War has been reported to be one of the most brutal wars in the history of time for many reasons. One of those reasons was strategic usage of chemical warfare. Chemical gas was used on both sides of the line‚ which turned out to be fatal for many. World War I was mostly fought in the trenches‚ where soldiers lived in deep‚ v-shaped holes or underground bunkers. Both sides would occupy these trenches in order
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Physical and Chemical Reactions Lab #4 Alesa Cannon Objective: To investigate the physical and chemical properties of a pure chemical substance. Procedure: 1. Half-fill one well of a 24-well plate with 6 M HCl and half-fill a second well of the 24-well plate with 6 M NaOH. Suck up these chemicals into their labeled pipets for later use. 2. Perform the following steps on each of the substances to be tested. Complete all tests of one substance and record your observations before proceeding
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Lab Report: Identifying Physical and Chemical Changes Nelson Science Perspectives 10 section 5.2 Amazing Student September 17‚ 2012 Mrs. Volkmann SNC 2D Purpose: To collect evidence and then use it to identify physical and chemical changes. Hypothesis: I predict the following: Change 1 will be a chemical change Change 2 will be a chemical change Change 3 will be a physical change Change 4 will be a chemical change Change 5 will be a chemical change Change 6 will be a physical
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Chemical reactions proceeding until all the reactants are used is a common misconception. Chemical reactions actually behave differently. The general reaction equation is a A + b B → c C +d D in this equation A and B are the reactants forming the products C and D. However‚ unlike the common thought that the reaction ends when it runs out of A and B it actually does not. In most reactions C and D start to react to form A and B at a certain point as you can see in the equation c C + d D → a A + b
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World War I Chemical Warfare On April the 22‚ 1915 at the start of the Second Battle of the Ypres‚ the first poison gas attack and the first use of chlorine gas in a battlefield started‚ even though the Hague declaration and Convention forbade the use of poison weapons in the warfare. The Germans attacked France with the chlorine gas‚ but the French were not prepared at all for this attack. The effects of the chlorine gas to the soldiers was very severe; within seconds it destroyed their respiratory
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potential of chemically binding to other monomers of the same species) which link in various fashions (e.g. cross-link‚ linear linking) to form materials that are used constantly to help humanity’s comfort and existence thrive. An important innovation of chemical advances is a material known as Hydrogels. What are Polymers and Why Use Carbon and Silicon Atoms? Polymers are repeating chains of monomers (atoms) which link in varying trends depending on their individual properties. These properties determine
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