i just put somthing lik that in about 5 minutes ago but its an emrgyncy!!! facts about chemical weathering!..... got any facts?
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http://www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/Soils/FormationSoils/WeatheringSoils/ChemicalWeathering/chemicalweathering.htm\n\nhttp://cse.cosm.sc.edu/hses/Weather/ChemWeat/frames.htm\n\nhttp://en.wikipedia.org/wiki/Weathering\n\nhttp://visearth.ucsd.edu/VisE_Int/platetectonics/chemweath.html\n\nhttp://regentsprep.org/Regents/earthsci/units/weathering/weathering.cfm\n\nsearch chemical weathering on the net.
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It is thought by some geologists that the Earth experienced global warming in the early Jurassic period, with average temperatures rising by 5 °C. Research by the Open University published in Geology (32: 157–160, 2004 [59]) indicates that this caused the rate of rock weathering to increase by 400%. Rock weathering locks away carbon in calcite and dolomite, which are minerals with various degrees of carbon oxides. As a result of this, carbon dioxide levels dropped back to normal over roughly the next 150,000 years.\n\nSudden release of methane from clathrate compounds (the Clathrate Gun Hypothesis), has been hypothesized as a cause of past global warming. Two events possibly linked in this way are the Permian-Triassic extinction event and the Paleocene-Eocene Thermal Maximum. However, warming at the end of the last ice age is thought not to be due to methane release [60].\n\nThe greenhouse effect has also been invoked to explain how the Earth made it out of the Snowball Earth period. During this period all silicate rocks were covered by ice, thereby preventing them from combining with atmospheric carbon dioxide. The atmospheric carbon dioxide level gradually increased until it reached about 350 times current levels. At this point temperatures were raised to an average of 50 °C, hot enough to melt the ice. Increased amounts of rainfall would quickly wash the carbon dioxide out of the atmosphere. Thick layers of abiotic carbonate sediment which can be found on top of the glacial rocks from this period are believed to have been formed by this rapid carbon dioxide removal process.\n\nUsing paleoclimate data for the last 500 million years (Veizer et al. 2000, Nature 408, pp. 698-701) concluded that long-term temperature variations are only weakly coupled to carbon dioxide variations. Shaviv and Veizer (2003, [61]) extended this by arguing that the biggest long-term influence on temperature is actually the solar system's motion around the galaxy. Afterwards, they argued that over geologic time a change in carbon dioxide concentrations comparable to doubling preindustrial levels, only results in about 0.75 °C warming rather than the usual 1.5-4.5 °C reported by climate models [62]. Veizer's recent work has been criticised by RealClimate.org [63].\n\nPalaeoclimatologist William Ruddiman has argued (e.g. Scientific American, March 2005) that human influence on the global climate began around 8000 years ago with the development of agriculture. This prevented carbon dioxide (and later methane) levels falling as rapidly as they would have done otherwise. Ruddiman argues that without this effect, the Earth would be entering, or already have entered, a new ice age. However other work in this area (Nature 2004) argues that the present interglacial is most analogous to the interglacial 400,000 years ago that lasted approximately 28,000 years, in which case there is no need to invoke the spread of agriculture for having delayed the next ice age
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What is in wood stains? Would this make pine,fir darker?\nWould it tan and stain leather?\nJust to get rid of it, is it compostable? good for acid loving plants?\nSorry not to really know.
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try the old fashion baking soda and vineger trick! they have a chemical reaction and foam up. thats what i did back in middle school.
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1) Litmus is red in acid, blue in base...so it would turn red in rainwater (which is sl acidic, more or less depending upon atm contamination), blue in ammonia.\n2) AgCl precipitates out...KCl + AgNO3--->AgCl(ppt) + K+ + NO3-\n3) Zn is more active than Fe, so it plates out at the expense of Fe...Zn(+2) + Fe--->Zn(ppt) + Fe(+2)\n4) Depends on the type of battery...for the lead/acid type it is a reversible reaction between PbO in the plates and the H2SO4 electrolyte (in overly simple terms)\n.....Discharge: 2H(+) + SO4(-2) + PbO--->PbSO4 + H2O\n.....Charge: PbSO4 + H2O--->PbO + 2H(+) + SO4(-2)
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what affects buffers?\n\ndepends on which bufffers  -pH will with solubility, aas will temperature\n\nmaximum capacity depends on individual buffer - citric acid maxes at 3 base molecules, as does phosphates..\n\n\nnow to the question - what will you do for me?????   Good  thing I am a Christian - so i'll just take a thank you
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What has that to do with chemistry at all?  Try asking a meterologist.
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ehm...aren't you suppose to substact 200psi of residual pressure from that 1300psi 1st?  giving you 265.7 minutes left.
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no, reaction times are too slow at that temperature.  (I'm just guessing, but I'm a chemist.  You should be able to look up reaction energies, try Beilstein.)
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trying to understand your question.\nHBr isn't evolved b/c it's a liquid not a gas. If it's unstable it's b/c it is an acid and reacts like one.
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You know, it might be kinda fun asking questions through this format, but you will learn it better by actually doing the studying yourself. \n\nRemember that "conservation of matter" has to do with keeping stuff the same. The rock cycle is very broad and covers all the rock processes, both contact and regional metamorphism have changes in crystal types occurring, so sedimentation has to be the best illustration of conservation of matter. \n\nBut go back to your notes and your text and then rewrite the information in your own words to make it stick in your head.
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Holocene Soil Development on Till and Outwash Inferred from Lake-Sediment Geochemistry in Michigan and Wisconsin \nAuthors: Ewing H.A.1; Nater E.A.2\nSource: Quaternary Research, Volume 57, Number 2, March 2002, pp. 234-243(10)\n\nParent material. Few soils weather directly from the underlying rocks. These "residual" soils have the same general chemistry as the original rocks. More commonly, soils form in materials that have moved in from elsewhere. Materials may have moved many miles or only a few feet. Windblown "loess" is common in the Midwest. It buries "glacial till" in many areas. Glacial till is material ground up and moved by a glacier. The material in which soils form is called "parent material." In the lower part of the soils, these materials may be relatively unchanged from when they were deposited by moving water, ice, or wind.\n\nSediments along rivers have different textures, depending on whether the stream moves quickly or slowly. Fast-moving water leaves gravel, rocks, and sand. Slow-moving water and lakes leave fine textured material (clay and silt) when sediments in the water settle out.\n\nClimate. Soils vary, depending on the climate. Temperature and moisture amounts cause different patterns of weathering and leaching. Wind redistributes sand and other particles especially in arid regions. The amount, intensity, timing, and kind of precipitation influence soil formation. Seasonal and daily changes in temperature affect moisture effectiveness, biological activity, rates of chemical reactions, and kinds of vegetation.\n\nTopography. Slope and aspect affect the moisture and temperature of soil. Steep slopes facing the sun are warmer, just like the south-facing side of a house. Steep soils may be eroded and lose their topsoil as they form. Thus, they may be thinner than the more nearly level soils that receive deposits from areas upslope. Deeper, darker colored soils may be expected on the bottom land.\n\nBiological factors. Plants, animals, micro-organisms, and humans affect soil formation. Animals and micro-organisms mix soils and form burrows and pores. Plant roots open channels in the soils. Different types of roots have different effects on soils. Grass roots are "fibrous" near the soil surface and easily decompose, adding organic matter. Taproots open pathways through dense layers. Micro-organisms affect chemical exchanges between roots and soil. Humans can mix the soil so extensively that the soil material is again considered parent material.\n\nThe native vegetation depends on climate, topography, and biological factors plus many soil factors such as soil density, depth, chemistry, temperature, and moisture. Leaves from plants fall to the surface and decompose on the soil. Organisms decompose these leaves and mix them with the upper part of the soil. Trees and shrubs have large roots that may grow to considerable depths.\n\nTime. Time for all these factors to interact with the soil is also a factor. Over time, soils exhibit features that reflect the other forming factors. Soil formation processes are continuous. Recently deposited material, such as the deposition from a flood, exhibits no features from soil development activities. The previous soil surface and underlying horizons become buried. The time clock resets for these soils. Terraces above the active floodplain, while genetically similar to the floodplain, are older land surfaces and exhibit more development features.\n\nThese soil forming factors continue to affect soils even on "stable" landscapes. Materials are deposited on their surface, and materials are blown or washed away from the surface. Additions, removals, and alterations are slow or rapid, depending on climate, landscape position, and biological activity.\n\nWhen mapping soils, a soil scientist looks for areas with similar soil-forming factors to find similar soils. The colors, texture, structure, and other properties are d
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"The final experiment was to observe the reaction when one small crystal of NH4SCN was added to 0.1 M FeCl3. The color of FeCl3 was yellow, but after NH4SCN was added, the color of contents changed to red.\nIn second experiment, when the Mg was ignited, the resulting flame was hot. Therefore, the release of thermal energy through the interaction of Mg and O was shown.\nFiguring out the type of the last two reactions was difficult, because the chemical equations were not given. However, the possibility that the type of both reactions were replacement reactions was high. The reason being that the chemical reactions were observed as a color change and this means that the composition of the substance is changed.\nThis experiment was very successful, and it was a good opportunity to observe chemical reactions directly."\n\nI would change your paragraph to that.  I would also expand on the other experiments if you know more about them.
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http://pictures.ask.com/pictures?q=salinization&qsrc=31&o=0
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I have to admit im not too clued up on the geology of Maryland, however over here in the UK we have in the Mendip Hills something which resembles Obsidian but in fact its not. On a university field trip we went to an old smelt, where the guys used to smelt Limestone and the result was this black shiny stuff that looked identical to Obsidian. The stuff was strewn all over the place in big heaps. Confused the 'ell out of us students initially until we were told the what it actually was. I wish I could remember more about it but then again uni was a bit of a blur!
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There's two things you're being asked to recognize.\n(1) what kind of reaction is this\n(2) is it going to go forward?\n\nLets deal with them in order.\n\n(1)  What kind of reaction is it.  \n\nI find it very helpful personally to say the names of the molecules out loud.\n\nPhosphoric Acid reacts with Strontium Hydroxide to form what?\n\nWell, the first reactant is an acid, right? The second reactant is a metal hydroxide, like sodium hydroxide, so its a base.  That makes this an acid-base neutralization.  There's no redox chemistry going on here, so the bonds in the polyatomic anion, phosphate (PO4 (3-) ) are going to all remain intact.\n\nRemember, an acid + base neutralization will always form water and a salt.  In this case , your salt would be a combination of the non-hydrogen portions of the acid (PO4) and the metal.  \n\n\n(2)  Will this reaction go forward?\nStrontium hydroxide is moderately soluble in water.  The phosphate salt very nonsoluble.  That means that the product of the displacement will be taken "out" of the solution, driving the reaction towards formation of products.\n\n*********NOTE**********\nMany of your choices aren't charge-balanced molecules.  This may help you tremendously.  I think you may have a typo in your question.\n\n*********NOTE 2*********\nOnce you fixed the choice (d) your typo was taken care of.
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I believe the classic way of showing the effects of acid rain is to use lime stone corrosion. Test the possibilities using a piece of limestone (chalk or similar), three different petrie dishes, on one use ordinary distilled water, the next with an alkaline solution the the third with acid and note the effects. The latter should start to bubble hence showing a reaction between the two. This has a huge knock on effect with buildings, cliffs, statues, etc as they are worn away by rain which has become acidic.