reaction between hydrazine‚ N2H‚‚ and dinitrogen tetroxide‚ N204‚ has been used to launch rockets into space. The reaction produces nitrogen gas and water vapor. a. Write a balanced chemical equation for this reaction. b. What is the mole ratio of N.‚04 to N2? C. How many moles of N2 will be produced if 20 000 mol of N2H‚ are used by a rocket? d. How many grams of H20 are made when 450. kg of N204 are consumed? jjj2. Joseph Priestley is credited with the discovery of oxygen. He produced O.‚ by heating
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metals and organic contaminants such as solvents‚ crude oil‚ explosives‚ and other toxic compounds from contaminated environments. Mechanism: Bioremediation works by taking complex organic compounds such as TNT‚ which are made up of carbon‚ nitrogen‚ oxygen‚ and hydrogen. When combined with regular compost ingredients such as manures‚ sawdust‚ straw‚ and fruit and vegetable processing wastes‚ the explosives become broken down into harmless chemical forms.(3) Bioremediation methods are classified
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Humankind is largely fed by food grown with synthetic chemical fertilizer and by explosives like Dynamite. Synthetic fertilizer requires a plentiful supply of nitrogen‚ inventing a process to fix it in ammonia was daunting. Attempts were made for over 100 years. Then in 1909 Fritz Haber‚ a German chemist‚ solved the problem in principal. In 1910‚ Carl Bosch‚ pioneering new engineering methods‚ commercialized the process. Known as the Haber-Bosch Process‚ it is now responsible for growing about half
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Unit 2 Home Labs - KEY Goals: Read Safety Perform Changes: Physical or Chemical Lab Perform Special Physical Properties of Matter Lab Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions
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elements in group 15 from period 2 - 5‚ give the name and symbol of each. Give a biological use for each (click on the element and then on the term "biology" in the margin). 1. Nitrogen N nitrogen is a key component of biological molecules such as proteins (which are made from amino acids‚ and nucleic acids. The nitrogen cycle in nature is very important. 2. Phosphorus P phosphorus is a key component of biological molecules such as DNA and RNA. Phosphorus is a component of bones‚ and teeth‚ and
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by farmers who engage in mixed farming‚ so in effect there is no or little waste generated. Research has shown that even though cow dung and poultry droppings are high in organic matter and also rich in nutrients‚ its composition on the basis of nitrogen‚ phosphorus and potassium (n.p.k) which is
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The Effects of Herbicides on Aquatic Organisms Anthony Cerda John Jay Science and Engineering Academy Abstract In this experiment different herbicides were added to aquatic organisms. The organisms used were protists and bacteria which are microscopic organisms (Microorganisms). Herbicides are chemicals used to control certain plants such as weeds. Two hypotheses were tested in the experiment.H₁) The herbicides will affect the population growth rate of the microorganisms and H₂) The adding
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they are used. Amines are an organic derivative of ammonia‚ and like ammonia‚ amines have a nitrogen atom with a pair of electrons. You can identify an amine by its functional group. In every amine‚ there is an amino (NH2) attached to a hydrocarbon chain. You can recognize the amino in an amine’s structural formula: R-NH2‚ where “R” is the hydrocarbon chain and “NH2” is the amino (containing one nitrogen molecule and two hydrogen molecules). There are two ways to name an amine. The common name and
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Explosives A chemical explosive is a compound or a mixture of compounds susceptible of a rapid chemical reaction causing a quick physical outburst of gases or heat radiation. The first explosives were created by the Chinese in the 11th century. These were mixtures of nitrate salts‚ sulfur and charcoal‚ now known as black powder. Gunpowder which is a low explosive‚ exhibits deflagration‚ or rapid burning‚ rather than detonation‚ the reaction exhibited by high explosives. While‚ perhaps counterintuitively
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placed under the front seat by most carmakers. (See photo) ) Cars produce a lot of harmful emissions‚ but the main ones are: carbon monoxide which is a piousness gas‚ hydrocarbons which is mostly produced by evaporated‚ unburned fuel and nitrogen oxides‚ which cause irritation to human mucus membranes. But how does a catalytic converter help reduce the emissions? To answer this question‚ we first need to look into what a catalyst is. A catalyst is a substance‚ which accelerates a chemical
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