temperatures (above 400’C) it decomposes poto tassium chloride and elemental oxygen‚ according to the following equation: 2 KCIOB(s) -----+ 2 KCI(s) + 3 Ork) The relative amounts of oxygen and potassium chloride are measured by heating a weighed sample of potassium chlorate and determining the amount of residue (potassium chloride) remaining. The decrease in mass brought about by heating represents the amount of oxygen originally present in the sample. From the experiment we obtain the following
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as a straight line. The straight line is due to the limiting factors of light intensity (Carbon dioxide and concentration of Chlorophyll). Glucose + Oxygen (+ light) Carbon dioxide + Water Safety Don’t place hands on bulb- damage to skin may occur. Variables Independent: distance of light bulb Dependant: Amount of oxygen bubbles‚ distance of bulb away from pondweed and the amount of water. Control: amount of water Method Place some Elodea in a boiling tube. Place
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note the volume of oxygen in the measuring cylinder in a suitable table of results. * Empty and rinse the conical flask and measure another 20 cm3 pureed potato into it. Reassemble the apparatus‚ refill the measuring cylinder‚ and repeat from d to g with another concentration of hydrogen peroxide. Use a 100 cm3 measuring cylinder for concentrations of hydrogen peroxide over 20 vol. * Calculate the rate of oxygen production in cm3/ s. * Plot a graph of rate of oxygen production against
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Science questions 1) carbon dioxide 2) Living organisms like plants‚ animals and decomposertake oxygen from the atmosphere and utiliseit for respiration. 3) Nitrogen fixation 4) Biosphere is the regions of surface atmosphere occupied by living organisms sustainsble ecosystem ecosystem is one that can survive and thrive without humans having to continually add or take out of the ecosystem. 5) When animals breathe they produce carbon dioxide and you get it when you eat a plant. 6) We use carbin
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A lack of dissolved oxygen in the river would result in scores of fish‚ plants and other life forms to perish. An increase in dissolved oxygen downstream is surprising as downstream of the treatment plant‚ temperatures are much hotter‚ an averaged increase of about 10 degrees. Although‚ this could be due to the tests at the second site being conducted later in the day whereas the tests at test site 1 were done before midday. The increase in the levels of dissolved oxygen are due to a process called
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natural gases‚ gunpowder and trinitrotoluene (TNT). Although for the combustion reaction to take place there has to be an oxidiser‚ this usually is Oxygen (O2). An oxidiser is a chemical substance that adds Oxygen to complete a reaction (Daily‚ 2015). The oxidiser is usually found in the surrounding air‚ this also concludes to the fact that if you add Oxygen by fanning a flame it will become brighter. Overall meaning that since both explosions and coloured flames undergo a combustion reaction both must
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and ensure prompt treatment is rendered to minimize mortality and mobility in newborns at the delivery wards. Accurate physical assessment is done on the newborn on the first and fifth minute at birth to determine if the newborn is getting enough oxygen. By administering APGAR scoring - based on each of the components that are assessed in the APGAR scoring are : Cardiovascular (heart rate‚ color of the skin)‚ fetal respiratory (quality of breathing and neuromuscular function (tone and reflexes based
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water becomes oxygen depleted. There are natural cycles of eutrophication in the spring and fall‚ but the body of water can deal with those amounts. When excess waste is added to the water the body of water can no longer control the growth of the algae and the water soon becomes algae ridden and oxygen depleted. The water becomes oxygen depleted because the dead algae goes to the bottom and uses the oxygen in the deeper water to decompose‚ but if there is too much dead algae all the oxygen is depleted
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there is no need for an Argon atom to combine chemically with any other atom to form any bond. Argon’s history begins in 1785 when Cavendish mixed air with oxygen and performed several electrical discharges over a mixture of potassium hydroxide. By this process‚ he converted nitrogen of the air into potassium nitrate. Then‚ he removed the oxygen excess‚ but there still remained a small amount of gas‚ no larger than 1/120 of the original volume of air. He considered that this difference had been caused
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INTRODUCTION: The research topic is based upon the impact of the abiotic factors on community properties in the aquatic ecosystems of bith La Vega and Caroni Swamp. The abiotic factors to be included ate salinity‚ turbidity‚ dissolved oxygen‚ phosphates‚ nitrates‚ pH‚ and temperature. Aqautic abiotic factors have become a prudent issue in these ecosystems affecting the abundance and distribution of species as well as feeding relationships as seen in food webs and food chains. In order to try to solve
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