The importance of calcium and phosphorus is that they play a role in the body and their role is to build bones and teeth this is because they allow rigidity to the structure of the bones and teeth. This is because bones are continuously being rebuilt with new bone being formed and also teeth as well but at a slower rate but this is why calcium and phosphorus is needed and is important. The role of calcium is that it circulates blood and it also helps blood clot in other body tissues and also plays
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1-There are __________ paired and __________ unpaired electrons in the Lewis symbol for a phosphorus atom. A) 4‚ 2 B) 2‚ 4 C) 2‚ 3 D) 4‚ 3 E) 0‚ 3 2-There are __________ paired and __________ unpaired electrons in the Lewis symbol for a phosphorus atom. A) 4‚ 2 B) 2‚ 4 C) 2‚ 3 D) 4‚ 3 E) 0‚ 3 3- How many unpaired electrons are there in an ion? A) 0 B) 1 C) 2 D) 3 E) This cannot be predicted. 4-What is the electron configuration for the ion? A)
Free Atom Chemical bond Electron
Caselet 1 Kinetic Engineering Limited (KEL) has created a buzz in biking circles with its announcement of introducing the 250 cc cruiser Aquila of Hyosung Motors of Korea. It has generated curiosity and interest among bike enthusiasts in the country. The bike is being promoted as a ’real’ cruiser. It is fitted with a 250 cc. v-twin‚ oil-cooled engine with four valves per cylinder. It has an output of 26 bhp. with top speed of over 130 kmph. The company is the first to introduce this high-end bike
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A KINETIC STUDY OF AN IODINE CLOCK REACTION PURPOSE To investigate the kinetics of the reaction that occurs between iodide and persulfate ion. You will: (1) determine the rate law‚ (2) determine the numerical value of the rate constant at room temperature‚ (3) explore the effect of temperature on the reaction and determine the activation energy (Ea)‚ and (4) investigate catalytic activity of selected metal ions on the reaction. INTRODUCTION Reaction times vary from picoseconds (10-12 seconds)
Free Chemical kinetics Chemical reaction Reaction rate
mineral that I chose for his week’s assignment is phosphorus. Phosphorus is the second most ample mineral that is found in the human body. It flows all throughout the body‚ but more than 80% combines with calcium. The 80% that combines with the calcium is used for our bones and teeth. Phosphorus plays many major roles in our bodies. One of the roles that it has is that it is part of the DNA and RNA of every cell in the body. This is why phosphorus is important for growth and renewal of our tissues
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Kayla Tucker Cycles Project In this paper i will be describing the different cycles that we have learned about. There are five cycles that are constantly happening around us. There is the water cycle‚ phosphorus cycle‚ nitrogen cycle‚ carbon cycle and the sulfur cycle. The water cycle is the first one i will be talking about. It is a continuous cycle and the water goes from liquid state to a gas state over and over again. It begins in a process called evaporation which is “the process of
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done so by accident. Phosphorus was no different. This substance came about in 1669 when a German physician named Hennig Brand boiled‚ filtered and processed many gallons of urine. As disgusting as this method was‚ he conducted the experiment in hopes to distill salt by evaporating urine! In the interim‚ he generated a white substance that glowed in the dark and burned brightly‚ hence Phosphorus. The urine-burning method is not necessary any longer. We can collect phosphorus from phosphate rock
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matches is red phosphorus. A chemical equation of lighting a match is: 16KCl3 + 3P4 S3 --> 16 KCl + 9SO2 Actually phosphorus is found in three main forms: white‚ red‚ and black. (There are also numerous allotropes of each of these forms.) White phosphorus is a soft‚ waxy‚ flammable substance‚ consisting of tetrahedral P4 molecules; it is often slightly yellowish because of the presence of impurities (hence‚ it is sometimes imaginatively known as yellow phosphorus). White phosphorus is highly
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KINETIC ENERGY Objects have energy because of their motion; this energy is called kinetic energy. Kinetic energy of the objects having mass m and velocity v can be calculated with the formula given below; K=1/2mv² Kinetic energy is a scalar quantity; it does not have a direction. Unlike velocity‚ acceleration‚ force‚ and momentum‚ the kinetic energy of an object is completely described by magnitude alone. Like work and potential energy‚ the standard metric unit of measurement for kinetic energy
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Kinetic theory (or the kinetic or kinetic-molecular theory of gases) is the theory that HYPERLINK http//en.wikipedia.org/wiki/Gasgases are made up of a large number of small particles (HYPERLINK http//en.wikipedia.org/wiki/Atomatoms or HYPERLINK http//en.wikipedia.org/wiki/Moleculemolecules)‚ all of which are in constant‚ HYPERLINK http//en.wikipedia.org/wiki/Randomnessrandom HYPERLINK http//en.wikipedia.org/wiki/Motion_(physics)motion. The rapidly moving particles constantly collide with each other
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