is diabetes. People with both type 1 and type 2 diabetes mellitus have high levels of triglycerides and LDL; they also have decreased levels of HDL. Since diabetics have higher blood glucose levels‚ the endothelial cells diminish the creation of nitric oxide‚ a vasodilator. The endothelium also secretes thromboxane A2‚ a coagulation enhancer. Additionally‚ with high amounts of glucose in the bloodstream‚ the glucose connects with the endothelium of the blood vessel wall and inhibits the cells to produce
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melting points. So assignment of presumptive identity can be done my taking the melting point of a PURIFIED osazone from a purified carbohydrate. | yellow to pale orange osazone crystals | MUCIC ACID | 5N Nitric Acid | | Monosaccharides‚ upon treating with strong oxidizing agents such as nitric acid‚ yield saccharic acids. The saccharic acid obtained after the oxidation of galactose is insoluble and separates as gritty crystals. This acidic derivative is known as mucic acid‚ thus the name for the
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dolomite lime‚ quicklime and slaked lime. Calcium carbonate occurs in nature as limestone in various forms‚ such as marble‚ chalk and coral. It is produced either as powdered or precipitated calcium carbonate. Calcium carbonate decomposes to calcium oxide and CO2 on heating. Treatment with dilute mineral acids produces corresponding calcium salts with liberation of CO2: CaCO3 + 2HNO3 Ca(NO3)2 + H2O + CO2(g) In this experiment‚ the mineral acid is added in excess to the calcium
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Copper + nitric Cu + 4HNO3 acid à copper(II) à Cu(NO3)2 + nitrate + nitrogen 2NO2 + 2H2O dioxide + water Combination?? -The liquid inside seems to change to green -Brown gas seems to form -Bubbles seem to form -Green liquid changes to blue 5 Copper(II) nitrate + sodium hydroxide à copper(II) hydroxide + sodium nitrate Cu(No3)2 + 2NaOH à Cu(OH)2 + 2NaNO3 Double Replacement -A solid seems to form 6 Copper(II) hydroxide à copper(II) oxide + water
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gasoline and other fuels in automobiles‚ trucks‚ and jet airplanes produce the most common pollutants‚ nitrogen oxides‚ gaseous hydrocarbons‚ and carbon monoxide‚ as well as particles of matter like lead. When nitrogen oxides combine with hydrocarbons they form other types of pollutants‚ like ozone‚ peroxyacetylnitrate which stings the eyes‚ and nitrogen dioxide which forms when nitrogen oxides react with oxygen. In cities where transportation is the major cause of pollution‚ nitrogen dioxide colors the
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pollutants such as carbon monoxide‚ nitrogen oxides‚ sulfur oxides and hydrocarbons are produced as fossil fuels are used (Union of Concerned Scientist‚ n. d.). Carbon monoxide causes headaches and aggravates people with heart disease. Nitrogen dioxide and nitric oxides create smog‚ a yellowish-brown “cloud” layer that settles on the ground. And these substances irritate lungs causing issues like bronchitis and pneumonia. Sulfur oxides and nitrogen oxides are the primary components of acid rain and
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Decomposition of Hydrogen Peroxide 2H2O2 - ⎯→ 2H2O + O2 Catalyst: manganese(IV) oxide(MnO2)‚ Iron(III) oxide (Fe2O3)‚ silver (Ag) Haber Process (Manufacture Ammonia) N2 + 3H2 ⎯→ 2NH3 (More detail in Form 4 Chapter 9) Contact Process(Manufacture Sulphuric Acid) 2SO2 + O2 ⎯→ 2SO3 (More detail in Form 4 Chapter 9) http://www.one-school.net/notes.html 2 ONE-SCHOOL.NET Ostwald Process (Manufacture Nitric Acid) Stage 1 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) Notes: 1.
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solution of nitric acid (HNO3) through a pipe. The ammonia combines with the nitric acid to form ammonium nitrate. The formula for this reaction can be written as NH3 + HNO3 → NH4NO3. Large amounts of heat are released during the reaction‚ so the pipe and supporting equipment must be very strong. The solution of ammonium nitrate in water is allowed to evaporate‚ leaving behind pure white crystals of the compound. Key information Other names: German saltpeter; Norway saltpeter; nitric acid‚ ammonium
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ATP‚ and ascorbic acid) (Bry et al.‚ 2004; Furlan‚ Lecanda‚ Screen‚ & Civitelli‚ 2001) (figure 2 (19)). GJPs may also allow the dispersion of the death signal in order to prolong the final phases of cell death to occur. Harmful metabolites like nitric oxides can also be dispersed and limited in hope to rescue the dying cells (T Nakase‚ Sohl‚ Theis‚ Willecke‚ & Naus‚ 2004). Depending on the severity of shift in homeostasis‚ different cell fates can occur (cell survival or cell
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NAME: K Class: Form 2 URANUS CHEMISTRY PROJECT Air pollution Description of air pollution Smog hanging over cities is the most familiar and obvious form of air pollution. But there are different kinds of pollution—some visible‚ some invisible—that contribute to global warming. Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered as air pollution. Air pollutant Carbon dioxide dioxide
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