Free Essays on Columbian Exchange - Sugarcane

Sugarcane was an important element of the Columbian Exchange and unfortunately resulted in stimulating the American slave trade. â€Å"Sugar cane is native to Polynesia, where†¦small pieces were often found washed up on foreign shores where they were said to flourish. This was the ‘explanation’ of its movement to China, India, and elsewhere† (Hobhouse 44). Refined sugar originated (1432) near modern Funchal, Portugal. Vineyards eventually would replace the sugar crops because the Europeans had destroyed most of the island’s woodlands necessary to grow sugar cane. Sugar was introduced into the Caribbean soon after the arrival of Columbus in 1492 (51). â€Å"By 1530, there may have been more than a dozen sugar plantations in the West Indies, using imported animal, imported machinery, imported workers in an agricultural development in a new continent an ocean away from the market† (52). The reason for this new agricultural growth was because the tropical climate was perfect for growing sugar cane and this would justify the high cost of settlement. The Caribbean settlers planted every kind of tropical plant. â€Å"Sugar crops are salable while other crops were riskier. Sugar is extremely addictive so the demand for it grew over a period of time (52). â€Å"Before Columbus carried a few pieces of sugar cane to the Caribbean, sugar was a luxury. Most European got it from their apothecaries to help make medicine taste better. But by the middle of the 16th century, tropical American forests were giving way to vast colonies of cane-growing plantations. Europe was hooked on sugar† (Columbian 27). In 1514, Bartolome Las Casas was given a piece of land in the Spanish colony of Cuba. The natives that were conquered would rather die than be a slave. Las Casas suggested using African slaves instead of the natives since they were known to work willingly, and this was the beginning of the transatlantic slave trade (Hobhouse 57). ... Free Essays on Columbian Exchange - Sugarcane Free Essays on Columbian Exchange - Sugarcane Sugarcane was an important element of the Columbian Exchange and unfortunately resulted in stimulating the American slave trade. â€Å"Sugar cane is native to Polynesia, where†¦small pieces were often found washed up on foreign shores where they were said to flourish. This was the ‘explanation’ of its movement to China, India, and elsewhere† (Hobhouse 44). Refined sugar originated (1432) near modern Funchal, Portugal. Vineyards eventually would replace the sugar crops because the Europeans had destroyed most of the island’s woodlands necessary to grow sugar cane. Sugar was introduced into the Caribbean soon after the arrival of Columbus in 1492 (51). â€Å"By 1530, there may have been more than a dozen sugar plantations in the West Indies, using imported animal, imported machinery, imported workers in an agricultural development in a new continent an ocean away from the market† (52). The reason for this new agricultural growth was because the tropical climate was perfect for growing sugar cane and this would justify the high cost of settlement. The Caribbean settlers planted every kind of tropical plant. â€Å"Sugar crops are salable while other crops were riskier. Sugar is extremely addictive so the demand for it grew over a period of time (52). â€Å"Before Columbus carried a few pieces of sugar cane to the Caribbean, sugar was a luxury. Most European got it from their apothecaries to help make medicine taste better. But by the middle of the 16th century, tropical American forests were giving way to vast colonies of cane-growing plantations. Europe was hooked on sugar† (Columbian 27). In 1514, Bartolome Las Casas was given a piece of land in the Spanish colony of Cuba. The natives that were conquered would rather die than be a slave. Las Casas suggested using African slaves instead of the natives since they were known to work willingly, and this was the beginning of the transatlantic slave trade (Hobhouse 57). ...

10 Facts About Acids and Bases

10 Facts About Acids and Bases 1:13 Watch Now: What are the Differences Between Acids and Bases? Here are 10 facts about acids and bases to help you learn about acids, bases, and pHÂ  along with a chart for comparison. Any aqueous (water-based) liquid can be classified as an acid, base, or neutral. Oils and other non-aqueous liquids are not acids or bases.There are different definitions of acids and bases, but acids can accept an electron pair or donate a hydrogen ion or a proton in a chemical reaction, while bases can donate an electron pair or accept hydrogen or a proton.Acids and bases are characterized as strong or weak. A strong acid or strong base completely dissociates into its ions in water. If the compound does not completely dissociate, its a weak acid or base. How corrosive an acid or a base is does not relate to its strength.The pH scale is a measure of the acidity or alkalinity (basicity) or a solution. The scale runs from 0 to 14, with acids having a pH less than 7, 7 being neutral, and bases having a pH higher than 7.Acids and bases react with each other in what is called a neutralization reaction. The reaction produces salt and water and leaves the solution closer to a neutral pH th an before. One common test of whether an unknown is an acid or a base is to wet litmus paper with it. Litmus paper is a paper treated with an extract from a certain lichen that changes color according to pH. Acids turn litmus paper red, while bases turn litmus paper blue. A neutral chemical wont change the papers color.Because they separate into ions in water, both acids and bases conduct electricity.While you cant tell whether a solution is an acid or a base by looking at it, taste and touch may be used to tell them apart. However, since both acids and bases can be corrosive, you shouldnt test chemicals by tasting or touching them! You can get a chemical burn from both acids and bases. Acids tend to taste sour and feel drying or astringent, while bases taste bitter and feel slippery or soapy. Examples of household acids and bases you can test are vinegar (weak acetic acid) and baking soda solution (diluted sodium bicarbonate a base).Acids and bases are important in the human body. For example , the stomach secretes hydrochloric acid, HCl, to digest food. The pancreas secretes a fluid rich in the base bicarbonate to neutralize stomach acid before it reaches the small intestine. Acids and bases react with metals. Acids release hydrogen gas when reacted with metals. Sometimes hydrogen gas is released when a base reacts with a metal, such as reacting sodium hydroxide (NaOH) and zinc. Another typical reaction between a base and a metal is a double displacement reaction, which may produce a precipitate metal hydroxide. Characteristic Acids Bases reactivity accept electron pairs or donate hydrogen ions or protons donate electron pairs or donate hydroxide ions or electrons pH less than 7 greater than 7 taste (don't test unknowns this way) sour soapy or bitter corrosivity may be corrosive may be corrosive touch (don't test unknowns) astringent slippery litmus test red blue conductivity in solution conduct electricity conduct electricity common examples vinegar, lemon juice, sulfuric acid, hydrochloric acid, nitric acid bleach, soap, ammonia, sodium hydroxide, detergent Chart Comparing Acids and Bases