1) How many hydrogen atoms are represented in the formula (CH3)2CH2? 1) _______ A) 8 B) 6 C) 9 D) 5 2) Which has the highest percent mass of Cl? 2) _______ A) C2Cl6 B) CCl4 C) C2Cl4 D) C2Cl2 3) The correct formula for Sodium Nitride is: 3) _______ A) Na3N B) NaNO2 C) NaNO3 D) Na2NO3 4) How many moles of NO3 are there in 6.2g? 4) _______ A) 0.05 B) 10 C) 0.10 D) 384 5) Consider the following equation: 4NH4 + 5O2 → 4 NO + 6H2O How many moles of water
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Chemistry of Bath Bombs Date: 16th May 2014 Introduction – When sodium bicarbonate and citric acid mix in water they dissolve‚ the sodium bicarbonate reacts with the citric acid to form sodium citrate and carbon dioxide. The carbon dioxide then bubbles out as a gas‚ which makes the bath bomb break up‚ in this experiment 3 tests will be conducted in order to find the correct ratio of bicarbonate soda and citric acid to create the
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A Comparative Study On The Combustibility Of Ethanol (C2H5OH) And Hydrogen Peroxide (H2O2) Mixtures As Fuel Chemistry January 31‚ 2013 Revised February 15‚ 2013 Abstract In this experiment‚ the proponents used mixtures with varied proportions of ethanol and hydrogen peroxide to know which would make a more efficient‚ clean‚ and stable combination. Compared to conventional fuels‚ ethanol contains 36% oxygen thus resulting in more complete combustion. This greatly lowers
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1. LIFESTYLE CHEMISTRY -many consumer products have been developed because of increased understanding of chemical substances‚ chemical reactions & the biochemistry of human body surfaces -some products are used as cleaning agents while others have been developed to act as barriers against environmental factors like wind and heat -some products are mixtures‚ used for medicinal purposes‚ & require a different understanding of body chemistry & chemical interaction -production of these
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torch. The data we found was that it turned blue after a period of time. The reaction was CoN- OH. The second station was very interesting. The procedure was to place 3 small drops of cobalt nitrate into a test tube in the rack. Place 6 drops of sodium hydroxide in the second test tube. Pour test tube into test tube one. Record the results. Dump the contents of the first tube into the filter funnel that has already been set up for you. Rinse both tubes and return to the test tube holder. Leave all
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xa.yimg.com/kq/groups/9534928/992196434/name/1.pdf by WE GORDON - Cited by 8 - Related articles reaction of sulfamic acid with nitrites is practically instan- taneous‚ and only ... differences between the sulfamate ion and the sulfate or chloride ions (12). T. [PDF] Method 9010C - US Environmental Protection Agency www.epa.gov/osw/hazard/testmethods/sw846/pdfs/9010c.pdf the distillation‚ nitrate and nitrite will form nitrous acid‚ which will react with some organic
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Sodium is an electrolyte that controls the fluids in the body’s tissues and cells. It is also responsible for regulating blood pressure and volume‚ helping transmit impulses‚ and regulating the balance of blood and body fluids. I believe it is important to monitor your sodium intake in order to stay in good health. Kidneys are the most common concern when too much sodium is being taken in because it can lead to damage to the heart. When there is an excessive amount‚ the kidneys are unable to
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A. Based on your observations make an activity series of the metals used. List them in such a way that the most active metal is on the left and the least active metal is on the right. Remember‚ sodium and copper are metals‚ too. B. Suppose you inserted a piece of copper into a solution of nickel chloride and observed no reaction. Then if you inserted a piece of iron into the solution of nickel chloride a nickel deposit formed on the bottom
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Making Connections: Chemistry Assignment By. Sujay Sukumar 5. a) When analyzing the graph‚ a relationship between the hydrocarbon chain of the alkane and its corresponding boiling point can certainly be noticed. There is a increasing correlation which can be explained using the theory that as each hydrocarbon chain gets bigger‚ there are more atoms and thus more electrons which contributes to higher dispersion forces and therefore a higher boiling point which is clearly seen through the graph.
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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