obtained have been tabulated as follows: Metal A B C D Ferrous Sulphate No reaction Displacement No reaction No reaction Copper Sulphate Displacement No reaction No reaction No reaction Zinc Sulphate No reaction No reaction No reaction No reaction Silver Nitrate No reaction No reaction Displacement No reaction Use the table above to answer the following questions about metals A‚ B‚ C and‚ D. i. Which is the most reactive metal? ii. What would you observe if B is added to a solution of copper sulphate
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Manual soldering uses a soldering iron or soldering gun.Alloys that melt between 180 and 190 °C (360 and 370 °F) are the most commonly used. Soldering performed using alloys with a melting point above 450 °C (840 °F) is called ’hard soldering’‚ ’silver soldering’‚ or brazing. For certain proportions an alloy becomes eutectic and melts at a single temperature; non-eutectic alloys have markedly different HYPERLINK "http://en.wikipedia.org/wiki/Solidus_(chemistry)" \o "Solidus (chemistry)" solidusand
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however with true love‚ there will always be a way. The caskets are obstacles Bassanio must overcome‚ and in tern if he does‚ he will understand the true nature of love to win Portia. Each of the three caskets represents a different view of love. Gold‚ silver‚ and lead‚ what is the most precious? The first to play the game is the Prince of Morocco. He unwisely chooses the gold casket and is barred from marrying anyone in the future. The reasoning behind his decision was
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Determination of Cations and Anions through Elimination and Confirmation Tests By: Symantha Resendiz Introduction A topic of great importance to all scientists is the identification of compounds‚ which is relevant in all aspects of their work in some way shape or form. Weather it may be determining what is causing sickness or what is polluting the air‚ it is very prevalent in the science world. In project 2‚ identification of cations and anions was preformed through a series of confirmation
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copper (II) sulfate with ammonium peroxodisulfate in the presence of pyridine. This same ability‚ coupled with its strong oxidizing ability allowed for stabilization of the unusual oxidation state of 2+ for silver which was observed by preparing an analogous silver (II) complex by reacting silver (I) nitrate with ammonium peroxodisulfate in the presence of pyridine. IR spectra for the three products were obtained‚ as well as qualitative tests for Product A (K2S2O8) in comparison with H2O2‚ confirm
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THREE CHEERS FOR CLARITA Clarita was eight years old but she was so small for her age that people thought she was no more than five or six. But for all her small size‚ she stood at the head of her class. Her mind was very keen; she was very wide awake. One day she heard her mother and father talking about burglars who been victimizing the neighborhood. The police had been unable to catch them. “I hope they don’t come here‚” her mother said. “I’m terribly afraid of burglars.” “Don’t worry
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The quantitative and qualitative analytical techniques used‚ suggesting improvements for Future investigations D1 Titration: positive aspects of experiment in terms of accuracy -Checking to see if any air bubbles were present and if the burette was leaking before doing the titration. If I did not do this‚ it would alter the end point and hence the titre results. -Recording the volume reading before doing the titration. -Making sure I was
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story. The bachelor’s story is about a girl who is "horribly good‚" so good that she wore[wo:] on her dress three medals for goodness. As a further reward for her goodness‚ the girl is invited to visit the park that belongs to the local Prince. As the girl strolls through the park‚ she is attacked by a wolf. The girl hides behind a bush‚ but the wolf eventually locates her when her medals click against one another. The wolf devours[di`vaues] the little girl. The children love the story. Thus‚ the story
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Athletes often wish to pursue their dreams of winning a medal for their country or being a part of a professional team. This is when many athletes often turn to performance-enhancing drugs (PEDs). Marion Jones had won 3 gold and 2 bronze medals at the 2000 Olympics in Sydney. Life was good until federal investigators approached Jones in 2007 as to whether she knew Victor Conte (a known distributor of PEDs to professional athletes). She denied the allegations and said she “didn’t know nuthin”.
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only the human elements – the skin and hair‚ are painted in the traditional way. It is painted in a matte‚ brushy texture which separates it from the other elements of the painting as it seems three dimensional. The rest are decorated in gold and silver leaf‚ creating a mystical atmosphere due to its glittering and extravagant effects. The clothes of the two figures are decorated with patterns and gold leaf‚ and a bubble of gold leaf is enveloped over them again. The robe in which the male is wearing
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