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| Science Practical |
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Posted by: EugeneNug - 01-16-2020, 06:19 AM - Forum: aluminium faq
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Well I got to do a science practical on chemical systems.On fertilisers, petrol(SASOL), soap and detergent industry or galvanic cells.egTake two types of fertilisers with different chemical ratios and use them on same plant and see for resultsThats and easy 1 and I cant use that oneYou can also include the way they are manufactured for example sasol uses fractional distillation.etc.I have tons of information on that I just don\'t know how to in co operate everything nicely.It should also be a practical that can easily be done at home Please help me with ideas.Oh and I\'m in gr12Thnx!Try textile dyeingYou would have to use pure materials in your practical partFor example, go to a fabric or sewing store and buy a yard each of cotton, polyester, silk, and woolSpecify no blendsFor the dyes, you can get turmeric and saffron in the spice rack of a supermarketDon\'t get commercial dyes whose ingredients are secretSaffron is expensive, but maybe your parents will spring for itTo test the effect of a mordant, get Burrows solution from a drug storeThis is a package of two packets that make aluminum acetate solution when mixed fresh in water3Ca(C2H3O2)2(s) + Al2(SO4)3(s) H2O 3CaSO4(s) + 2Al(C2H3O2)(aq)Always mix the solution fresh before dyeingYou can cut the fabrics into squares and staple labels to each written with India inkDye some with turmeric and some with saffronDye some by soaking in Burrows solution first and some notLet them all dryWash and dry each 10 times or soCompare the fastness, which is the retention of color with washingMount the fabric squares on poster board with labelsYou can look up the chemical composition of fabrics, the chemical composition of dyes, the dyeing process, mordants, and fastnessYou\'ll be so erudite that people won\'t be able to stand you.Other related question
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| about roasting a whole chicken |
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Posted by: GeorgeNum - 01-16-2020, 06:19 AM - Forum: aluminium faq
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each time i roast a chicken, it tastes greasythe chicken is on a rack - not sitting in the bottom of the pan - but no matter what, i taste chicken greaseam i doing something wrong? is there a way to get rid of the greasy taste?Try roasting the chicken at a higher temperature in the beginning400-450 degrees.For 15-30 minutes depending on the size of chickenYou can then tent the top with aluminum foil so it doesn\'t overcook and dry outSo, the skin on the outside gets crispy and NOT greasyIt also seals in the juicesAlso, let the chicken rest for 10-15 minutes after roasting so the juices can redistributeThat might help you.Other related question
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| What are some of the packaged cake brands in the 80s |
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Posted by: MarionJaiff - 01-16-2020, 06:19 AM - Forum: aluminium faq
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Specifically looking to remember a chocolate cake that came in an aluminium box with a clear plastic cover - it´s quite a large cake and was topped with rich chocolate frostingMy mom called it marble cake but I don´t remember that it was marbled.try combining all 3 like this: “No travellers allowed, examine the sign that youthful Papagee Albright observed as he regarded by his binoculars on the ghost cityIt grew to become into sparkling that flowers did no longer many times boost right here and one does no longer locate the widespread scavengers-stray dogs, hungry cats.If actuality, all that the Air tension Captain could see of existence grew to become right into a slithering snake who, in assessment to Albright, had no worry shifting between the rubblePapagee watched the snake slither around the dusty dirt“a minimum of a few thing can stay over there,” he stated, and then, virtually at latest, the snake curled up and died in an unusual way, area of its physique meltedOh my God.however is killing issues over there is quickly appearing and invisible.” His pal, \'Spider Joe’ Jacobs, spoke back, “Invisible to the bare eye, yet once I went around the waters and took soil samples, I observed it by a microscope; an excellent type of tiny crimson specks that blister your epidermisI figured chemicals, yet people who understand mbiologicalt say, \'biologicals.’” grew to become into that helpful? i\'m an aspiring author myself.Other related question
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| why do water tankers on trucks have that peculiar shape like a cylinder with sph |
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Posted by: Jarred76L - 01-16-2020, 06:19 AM - Forum: aluminium faq
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I think it has something to do with pressure distribution.For the Same volume which of these will hold the water at less pressure cylinder or sphere.And which has larger surface area or volume between the cylinder or spheretrue, aerodynamics would most likely be a factor, but i think becauues of its ability to withstand the pressure of waterSpheres and cylinders aare one of the stronger shapes, thats why butane cans are cyldrical, but have an inverted half sphere on the bottomAs for your questionI believe the cylinder will hold the water at less pressure simply because it would be bigger and the metal will expand (even a fraction) much easier than a spherewhich has the larger volume? assume a cylinder 4 meters tall with a diameter of 4 metersand a sphere is 4 meters in diameterAnd assume they are both filled 90% of their capacity(im orunding results to 2 decimal) Volume of cyliner pie x r2 x H 50.27m3 x .9 45.243 Volume of sphere 4/3¶r3 33.51 x .9 34.41 there you go, a cylinder will hold more waterOther related question
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| Starting with the best conductor copper aluminium iron glassTrue or False |
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Posted by: MoigrynetKt - 01-16-2020, 06:19 AM - Forum: aluminium faq
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Aluminium expands most on heating, then turn to brass, copper, iron, zinc and invarHow to explain it?True, your first list ranks the substances in order of conductivityThe second list ranks its substances in order of thermal expandabilityThe ranking of iron, copper, and aluminum differs for each quality because of many factorsThe main factor in conductivity is free electrons on the surface (cross-sectional perimeter) of the substanceThermal expansion is a function of the atomic bonds within the volume of the substance.Other related question
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| vegetable help |
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Posted by: SommerNyt9 - 01-16-2020, 06:19 AM - Forum: aluminium faq
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i have some green onions i gotthe other day i can not usethem have to leave town for a week or so what can i dfo to keep them freash ThanksOther related question
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| Chemistry Matching HW |
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Posted by: Punokata - 01-16-2020, 06:19 AM - Forum: aluminium faq
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Match the description with the name and symbol or formula of a Group 3A(13) element or compoundOne answer is used twice._Toxic metal that lies between to other toxic metals_Component of heat-resistant (Pyrex-type) glass_Largest temperature range for liquid state of an element_Manufacture of high-speed compouter chips_Mild antibacterial agent (e.gfor eye infections)_Elementary substance with three-center, two-electron bonds_Metal protected from oxidation by adherent oxide coat1.boron oxide, B 2O 32.gallium, Ga3.boron, B 4.aluminium, Al 5.boric acid, H 3BO 36.thallium, Tl(It\'s not 3,1,2,2,5,6,4)Toxic metal that lies between to other toxic metals? ThalliumComponent of heat-resistant (Pyrex-type) glass This is Boron (but could also be aluminium as it contains both) Largest temperature range for liquid state of an element? This is GalliumManufacture of high-speed compouter chips? This is Gallium Mild antibacterial agent (e.gfor eye infections)? This is boric acid Elementary substance with three-center, two-electron bonds? This is boron oxideMetal protected from oxidation by adherent oxide coat? This is Aluminium The answer is 6, 3, 2, 2, 5, 1 and 4.Toxic metal that lies between to other toxic metals? ThalliumComponent of heat-resistant (Pyrex-type) glass This is Boron (but could also be aluminium as it contains both) Largest temperature range for liquid state of an element? This is GalliumManufacture of high-speed compouter chips? This is Gallium Mild antibacterial agent (e.gfor eye infections)? This is boric acid Elementary substance with three-center, two-electron bonds? This is boron oxideMetal protected from oxidation by adherent oxide coat? This is Aluminium The answer is 6, 3, 2, 2, 5, 1 and 4.Other related question
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| IPhone 5 white colour and bugs |
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Posted by: AnnetteMub - 01-16-2020, 06:19 AM - Forum: aluminium faq
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Is there any of you guys already have the white iPhone 5? Is it looks good?And how is it doing? has it ever had any error or lags, or something?Other related question
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| How dangerous are broken microwave ovens |
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Posted by: jaimepc1 - 01-16-2020, 06:19 AM - Forum: aluminium faq
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I was unable to afford a new microwave, so my friend gave me his \'broken\' oneThis microwave\'s wall has a small dime size holeI told my 5 year son that it was so he could put his eye up to it and watch the food cook, but I am unsure if this is the caseIn addition to this, the microwave caused some chili to explode, making an annoying messMy dog, who I normally tie up in the kitchen, is acting strange (barking and vomiting) and seems to be fatiguedCurrently, I am attempting to reheat some chili, only this time I will precaution myself from a mess by sealing the bowl with some aluminum foilPlease let me know if I should stop using the microwave?Other related question
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