Does Soap Affect the Surface Tension of Water? Background: Surface tension refers to water’s ability to "stick to itself". Surface tensioncan be measured and observed by dropping water (drop by drop) onto a penny. Thenumber of water drops that can fit on a penny will surprise you. Question: How does soap affect the water’s surface tension? Hypothesis: I think that the surface tension of soapy water will be less than that of freshwater because H 2 0 has strong polar bonds‚ and when water is mixed
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countries as world powers‚ so they left it up to the Soviet Union and the United States. World War II started in 1939 and ended in 1945‚ with the attack of Poland and the axis surrender. During this time the economy changed and the growth of big countries did to like‚ Great Britain‚ Japan‚ Russia‚ France‚ and the United States. The World War II started September 1‚ 1939 when Germany attacked Poland domain ‚ Which was associated with Great Britain. The Germans signed a peace treaty in August with the Union
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As the suburbs grew‚ job businesses started to move to the more populated areas. Not only did businesses move to the area‚ but they decided to build shopping malls and large parking lots so that everyone who shops will have somewhere. With the building of suburbs and outlet malls‚ they soon got invested into building highways and interstates
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Right from the beginning of their relationship with India‚ the British‚ who had come as traders and had become rulers and administrators‚ had influenced the economic and political systems of the country. Their impact on the cultural and social life of India was‚ however‚ gradual. Till 1813‚ they followed a policy of non-interference in the social and cultural life of the Indians. Yet‚ changes were taking place in these fields (the social life of Indians). These changes related to education‚ the condition
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Jews and the Renaissance In the early 16th century‚ as Jews fled antisemitism in numerous European countries‚ many landed in the thriving cities of Italy. Jewish merchants‚ doctors‚ and scholars grasped the opportunity to be involved in the prosperous Renaissance movement‚ while at the same time faced the challenges their successes prompted. Although Jews were persecuted during the times of the Italian Renaissance‚ they also flourished economically‚ artistically and scientifically which lead to
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I recently wrote an essay about the development of the star persona of Ice Cube‚ the rapper/actor who has made the unusual transition from hardcore gangsta rapper to leading man in such “family-friendly” films as Are We There Yet? The essay‚ entitled “With an Attitude: The Development of Ice Cube’s Star Persona‚” will soon be published in the online film journal 16:9; I’ll link to it as soon as it’s up. The thesis of the essay is that‚ for all the apparent and unexpected alterations to his “street”
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Diffusion in agar cubes Introduction: All cells are dependent on a processes called diffusion‚ which is the movement of a substance from an area of higher concentration to an area of lower concentration. Cells need to obtain certain essential substances‚ like oxygen‚ for their survival. The rate of diffusion is said to be dependent upon the various factors: Size of molecules that have to diffuse‚ concentration gradient‚ the distance across which diffusion occurs‚ number of pores/openings‚ surface
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America. Religion greatly affected people in power‚ as well as the people in general. The Catholic versus Protestant conflict lead to many changes of what religion was in power. For instance‚ Henry‚ a Catholic‚ wanted to divorce his wife. Catholic law did not permit divorce so Henry asked the Pope to annul his marriage. The pope refused and Henry was no longer a part of the Catholic Church because he decided to break from it. In doing so‚ he set up a Protestant church called the Church of England. Another
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Napoleon Bonaparte and his ambition for conquest led to changes in history for many of the countries he had interacted with during his time. One place that he had a huge influence on was Prussia. Starting with the Treaty of Tilsit‚ which basically broke Prussia’s population and land in half. This was not the end of Napoleon’s treaties for Prussia‚ another‚ the Treaty of Paris was forced on Prussia. The French surrounded the borders of Prussia to force a signing onto Frederick William on 5 March
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The Effect of Molecular Weight and Time on the Diffusion Rate of Potassium Permanganate‚ Potassium Dichromate‚ and Methylene Blue.1 Arantxa Alex Carpio Group 1 Sec. X – 4L March 24‚ 2015 ABSTRACT The effect of molecular weight and time on the rate of diffusion was determined using the agar-water gel test. A petri dish of agar-water gel with three wells was prepared and a prepared solution of each substance was dropped on each well; one with potassium permanganate (KMnO4)‚
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