Review for test #3 1. Calcium is not well absorbedless that 30% 2. A major mineral means you need more of it. 3. The six major minerals are calcium‚ phosphorus‚ magnesium‚ sodium‚ potassium‚ and chlorine. The rest are trace minerals‚ which are not less important‚ but you just need them in less amounts. 4. Minerals are 0 calories. 5. The best source of iron is beef‚ liver‚ or meat. 6. The best source of zinc is beef‚ liver‚ or meat. 7. Vitamin C will help you absorb
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man’s wife could collect his insurance money. The man weighed 70kg‚ and a human body contains about 6.3 parts per thousand phosphorus. The acid in the vat was analyzed for phosphorus to see if it contained a dissolved human. a) The vat had 8.00 x 10 raise to 3L of liquid‚ and 100.0mL were analyzed. If the man did fall into the vat‚ what is the expected quantity of phosphorus in 100.0mL? b) The 100.0mL sample was treated with a molybdate reagent that precipitates ammonium phosphomolybdate‚ (NH4)3
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measured in pounds or dynes. A certain level of strength is also essential for a common man Strength can be divided into two parts: a ) Dynamic Strength (b) Static Strength. The methods of strength development are a) Isometric‚ b) Isotonic and c) Iso- kinetic exercises. Speed: Speed may be defined as the ability or capacity of the individual to perform a movement of the same pattern as faster rate. However different sports skills require different types of fast movement and quick reactions. Most probably
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to remain at minimum energy level possible. Now let us take an example of a pure silicon semiconductor and introduce a small amount of phosphorus. Now this new atom has five electrons around it. When it bonds with other 4 silicon atoms‚ its fifth electron is free. But again during the absence of potential difference‚ the fifth electron is bonded with the phosphorus atom. In presence of potential‚ these free electrons can move in the direction of the potential difference applied hence generating
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going uphill; the speed has less kinetic energy than it has potential. The potential energy is being stored up‚ as the marble’s velocity is at an upward motion. Once the ball reaches the highest point and starts moving in a downwards motion‚ it releases the stored energy and gains kinetic energy. While the marble is in motion‚ both the potential and kinetic energy have to be balanced. For example : the top of the second hill contains a 50-50 relationship between kinetic and potential energy. As the ball
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What is kinetic energy? Kinetic energy is energy due to object’s motion. Kinetic energy of an object depends on both its mass and its speed. Kinetic energy increases when mass increases. You can find kinetic energy by using the formula kinetic energy equals one half times mass times speed to the second power. What is potential energy? Some objects have stored energy as a result of their positions or shape.Potential energy is stored energy that results from the position or shape of an object.
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Static and Kinetic Friction Objectives:- * Use a Dual-Range Force Sensor to measure the force of static friction. * Determine the relationship between force of static friction and the weight of an object. * Measure the coefficients of static and kinetic friction for a particular block and track. * Use a Motion Detector to independently measure the coefficient of kinetic friction and compare it to the previously measured value. * Determine if the coefficient of kinetic friction
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NITROSYL CHLORIDE 657 NITROSYL CHLORIDE [2696-92-6] Formula: ClNO; MW 65.459 Structure: Cl—N=O. bent molecule‚ N—O bond distance 1.139Å and N—Cl bond distance 1.975Å Uses Nitrosyl chloride is an important component of aqua regia. It is an oxidizing agent in organic synthesis. It also is used as a catalyst. Physical Properties Yellow gas; heavier than air‚ density 2.3 (air=1); gas density 2.872 g/L; liquefies at –5.55°C; liquid density 1.273 g/mL; freezes at –59.4°C; critical temperature 167°C;
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Reaction Introduction This experiment performs a modified Wittig reaction using a phosphorus-containing Hornes-Emmons-Wittig reagent to generate an enolate anion of trimethyl phosphonoacetate instead of a phosphorus ylide. The methyl trans-4-methoxy cinnamate produced is then analyzed using melting point and 1H NMR spectroscopy. Theory The Wittig reaction prepares alkenes from carbonyl compounds by attacking a phosphorus ylide with a nucleophilic carbon atom stabilized by a triphenylphosphonium group
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b) O2 c) PCl3 d) Cu3PO4 e) Sn(NO3)2 f) CoF3 g) BaCO3 h) Ne i) N2O4 3. Give the chemical formula: a) iron (III) acetate b) calcium hydroxide c) lead (IV) phosphate d) carbon monoxide e) ammonium sulfate f) diphosphorous pentoxide g) cobalt (III) phosphate h) carbon tetrachloride j) zinc carbonate k) magnesium
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