common energy source. When people go outside and see the sun‚ an alternative energy source is the last idea that comes to mind. The sun is often ignored and so is solar energy‚ but this should change. “The Sun provides 100‚000 terawatts which is about 10‚000 times more than the present rate of the world’s present energy consumption. Photovoltaic cells are being increasingly used to tap into this huge resource and will play a key role in future sustainable energy systems.” (Grätzel 993). The Sun
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Today‚ many countries are depending more and more on nuclear energy to produce electricity. Although‚ nuclear energy can bring many benefits‚ such as nuclear fission‚ which releases no carbon dioxide‚ it also brings many risks to many countries that use nuclear energy. This was proved‚ in many disasters that nuclear energy caused years ago‚ like the Chernobyl Disaster in April 26‚ 1986‚ which was said that‚ “the radiation released was to be 200 times that of Hiroshima and Nagasaki nuclear bombs
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5.) a.) b.) Ethyne (C₂H₂) has the shortest C-to-C bond because there is a triple bond between the two C’s. The shorter the bond‚ the smaller the distance between the two bonded atoms‚ a single bond has the largest distance between two bonded atoms. c.) i.) trigonal planar ii.) pyramidal d.) This is not true because the bonds described are intramolecular forces‚ C-H‚ C-O‚ O-H‚ which are not affected by boiling. When boiling occurs‚ added energy overpowers intermolecular forces‚ not
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CHEMISTRY PRACTICAL NOTES - SALT ANALYSIS S.No. | EXPERIMENT | OBSERVATION | INFERENCE | 1(a) | Noted the colour of the salt | BluePale greenGreenPale pinkColourless | May be Cu2+May be Fe2+May be Ni2+‚ Cu2+May be Mn2+Absence of Cu2+‚ Fe2+‚ Ni2+‚ Cu2+‚ Mn2+ | (b) | Noted the physical state of the salt | (i)Amorphous(ii)crystalline | May be CO32-May be Cl-‚ Br-‚ SO42-‚ NO3- | 2 | Action of heat:The given salt is heated in a dry test tube. | (i)Reddish brown vapours(ii)Crackling sound(iii)Yellow
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1. What importance have the following groups attached to salt? i. Romans: Romans considered “common salt” a right and used it for cooking in both plebian and patrician cuisine. Salt trade was a prominent way of making money and soldiers were often paid in salt. A tightly controlled monopoly on salt contributed to military funds. ii. Greek Philosophers: Plato describes salt as dear to the gods‚ and we can even see the importance attached to it in religious ceremonies‚ covenants‚ and magical charms
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Vanessa Jimenez (period 3) Nuclear Chemistry Essay In today’s society‚ nuclear chemistry has slowly been introduced and taking over. Nuclear energy is even being considered as an alternate source of energy that is to be beneficial to our environment. More people are using nuclear power and it can be seen in a long range of our medical technology. This however‚ is not a good thing for the future of society. While nuclear energy does present some benefits to society‚ overall it causes too much damage
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Projection in Box Senior Province‚ Utah‚ United States is a range of high ground 32 mi (51 km) west of Brigham City‚ Utah with 66 mi 106 km northwest of Salt Lake City. Ascending to a height of 4‚902 feet (1‚494 m) above ocean level‚ it deceives the Projection’s north Mountains and the Incomparable Salt Lake. It is striking as the area of Projection Summit where the First Cross-country Railroad in the United States was formally finished on May 10‚ 1869. By the late spring of 1868‚ Focal Pacific
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Lab 2 For my conclusion I will write about the differences between people drowning in freshwater compared to people drowning in saltwater. When someone drowns it means that their lungs (respiratory system) has been blocked from receiving oxygen by a liquid. Majority of the time it is water that people drown in. “Drowning is the third most common cause of accidental death worldwide‚ accounting for 7% of all injury related deaths” (MedicineNet). Water is the most common way that people drown‚ but
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Wind Energy (The use of Wind Turbines) Denique Rodriguez MYP Chemistry Essay Abstract In this essay the benefits of wind energy will be discussed including the cons. Wind energy is a sufficient source of energy along with other renewable resources. It is one of many to be environmentally friendly and not produce harmful pollutants. This essay will also discuss the interworking of how wind turbines function and how well they operate in different conditions. Economically and
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but we are talking about water on top of water. The salt water and fresh will have different effects on the experiment. The experiment also see if the warmer the water is the different way it look. Purpose: The reason that I am doing this project is to see if water can float on water and to see the water at different densities‚ and salinity. To see if the salt water would sit on the fresh water and how it would reaction to the effect of the experiment. Also to see if the salt water will mix with
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