artifacts like shell-tools‚ stone axe-heads‚ charcoal‚ and human teeth. Some samples of burnt wood were taken in to be radiocarbon dated‚ and revealed to be somewhere between 1800-200 years old. Many different kinds of features we’re found at the site‚ the most notable were the 24‚ evenly spaced postholes. These imply some sort of building or structure was there. Another feature found was the charcoal from fires. Since there was a build up of charcoal this shows that this was some kind of hearth
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by the name of the carboxylic acid. Synthesizing for a complete reaction involves a strong acid which makes the esters a final product. Purpose The purpose of this lab is to complete four different synthesizing reactions and to identify its odors. Than followed by writing chemical equations for each reaction and ester formed. Hypothesis For test tube A I hypothesized that the final ester would be 2-methylpropyl formate. For test tube B I hypothesized the final ester would be octyl acetate
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of these soilds would simply mean that the molecules leave the surface easily. 10. From your answer to question 1‚ which of the two types of solids seem to have the stronger forces of attraction? Explain your answer. Camphor has a very strong odor which makes it easy for the particles in the soild leave it’s surface. The particle attraction to the soild is not very strong which means that the particles would leave the soild which then triggers a strong smell. 11. From your observations of
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Cu Zn MgO CuCO3 Cu(NO3)2 NaCl Color silver copper Odor metal no odor metal odor no odor no odor Solubility or Reaction Effect of Heat blackened Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH no apparent reaction no change no change slight . bubbling Mg inc. bubbling blue changed warmed gassed to purple bubbled no change warming bubbling silver white moss green bright blue white no odor no odor no blue turned no no apparent apparent change purple
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encouragement in charcoal grey are screenprinted on pure white faux leather. Hot pink accents with contrast stitching as well as HOPE word appliqué makes this a real delight. And look—the heart-shaped “o” in HOPE is a picture frame! RENI - PETITE 5161 $18.95 Bright cobalt blue pebble-grained faux leather demands attention—the bright gold zipper and tiny rivet accents are absolutely irresistible. CLASSIC HOPE (script) - CLASSIC 1222 $29.95 Words of encouragement in charcoal grey are screenprinted
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performance tools whereas professional segment requires highest performance tools. Another related issue is the color of the product. Charcoal grey & Black is generally associated with the consumer brands as most consumer brands including Craftsman‚ Skill‚ Wen‚ and Private Label are sold in this color whereas almost all the professional grade tools are sold in non-charcoal grey/black color. Tradesman are sub-consciously associating BD brand with consumer brand and hence are inclined to choose Makita over
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Lab Report #1 Introduction A cell’s plasma membrane is known to be selectively permeable. This implies that the membrane is selective on what substances can pass in and out of the cell. There are two methods of transport that occur through the plasma membrane. One method of transport is called active process which uses ATP energy to transport substances through the membrane. The other method is called passive process which does not require the use of ATP energy. During passive processes
Free Diffusion Molecular diffusion Solution
How did the raw materials assist in causing the Industrial Revolution? Coal was one of man’s earliest sources of heat and light. The Chinese were known to have used it more than 3‚000 years ago. It was discovered in Britain. The United Kingdom had a large amount of coal‚ especially in the North West‚ North East‚ Southern Scotland and Wales. Coal also helped improve the ability to manufacture iron‚ a metal needed to make machines and build factories. England traded and sold coal‚ oil‚ wood‚ steel
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Water is perfectly clear/No odor 2 It was cloudy with an oil sits on top of the water/no odor 3 This sample had a slight odor which was mostly unidentifiable and had good clarity 4 Bubbles formed on surface and had a cloudy appearance /no odor 5 Some sediment in water and brown in color /no odor 6 Water is brown in color with some sediment. No odor present and still a presence of oil that collected in the soil 7 Water is brown in color with some sediment. Has strong odor 8 Water was dark brown
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com/gasification-basics/how-it-works [4]: Taken from www.maps.google.com [5]: Taken from https://files.pbworks.com/download/w8lzcFjBq0/gekgasifier/51540832/1020kwPPMainte nanceSchedule_012512.pdf [6]-[12]: Taken from www.instructables.com/id/How-to-Make-some-Charcoal Data Cambodia‚ UNDP. (2010). Environment and Energy. Retrieved from United Nations Development Programme Cambodia: http://www.un.org.kh/undp/knowledge/publications/category/proj-doc-ee-2 EIS. (2012). Economic Institute of Cambodia. Retrieved from
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