alloy is not susceptible to localized corrosion‚ and that the passive film repairs
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rain This source discusses all the types of corrosion: • Miller‚ L. (2003‚ July 31). Corrosion. Retrieved April 3‚ 2009‚ from http://www.nsls.bnl.gov/about/everyday/corrosion.asp This source discusses how the corrosion known as rust (or iron oxide) forms: • Howstuffworks.com. (2009). How does rust work? Retrieved April 3‚ 2009‚ from http://www.howstuffworks.com/question445.htm These sources describe what acid rain is: • Buchdahl‚ J. (2003). Acid rain. Retrieved April 3‚ 2009‚ from
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has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it is more reactive. Aluminum + Iron Oxide: Aluminum will displace Iron because it is more reactive. Zinc + Hydrochloric acid:
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Analysis of a Chemical Reaction Name: A. Data Tables Item Measured/Quantity Calculated Mass (in grams) Iron nails (before reaction) 7.75g 5.5g Iron nails (after reaction) Mass of iron consumed 2.25g Initial mass of filter paper (before filtration) 0.86g 3.52g 2.66g Mass of filter paper and solid product Mass of solid product Show work below for “mass of iron consumed” and “mass of solid formed” calculations: 7.75g-5.5g=2.25g 3.52g-.086g=2.66g B. Follow-up Questions
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Chemistry Equipment Symbols 1. Test Tube 2. Boiling Tube 3. Beaker 4. Conical Flask 5. Test Tube Holder/ Tongs /Clamp Stand 6. Measuring/Graduating 7. Funnel 8. Pipette Cylinder 9. Spatula 10. Tripod 11. Bunsen Burner 12. Glass Bulb 13. Burette 16. Condenser Pipette Changes of State Filtering Solutions 03-Nov
Free Periodic table Atom Chemical element
CHEMICAL REACTION (SYNTHESIS REACTION‚ DECOMPOSITION AND SINGLE REAPLACEMENT REACTION) Purpose : 1. To identify the chemical changes 2. To observe the effect of temperature of a chemical reaction. Theoritical basic : A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically‚ chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds between
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Harbor. The statue weighs in at 280 tons and is visible for more than 42 miles on a clear day. The statue of Liberty is without a doubt‚ among the most monumental figures in American history. The Statue of Liberty is made of an aluminum scaffolding‚ an iron framework and metal skin made from copper. Originally‚ she was to be made of bronze‚ but weight problems required a switch to a lighter metal. The 300 copper plates that encase the framework are held together with some 300‚000 copper rivets. In the
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manufactured to prevent corrosion of the tank. Replacement of the rod will end smelly water when due to this cause. A Benjamin Franklin plumber in Arlington can provide the water heater repair needed to replace the sacrificial rod. A lack of oxygen in open water sources such as ponds‚ lakes‚ rivers‚ and streams can also cause sulfur type odors. Agricultural runoff can cause the
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which used a cutting cylinder mounted on a bench to trim cloth‚ Budding realized that a similar concept would enable the cutting of grass. - He and another engineer‚ John Ferrabee‚ created mowers out of cast iron and featured a large rear roller with a cutting cylinder in the front. The cast iron gear wheels were used to transmit power from the rear roller to the cutting cylinder 1. Compare the historical and current uses of the product. (5 marks) Before the invention of the lawn mower‚ grass was
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The first ever documented arrival of an explorer to Hawaii from Europe was in 1778 by Captain James Cook. He was a British explorer who‚ throughout his many voyages‚ explored the Southern part of the globe‚ along with New Zealand‚ parts of Australia‚ and some Pacific Islands. The captain sailed to many places including Tahiti and parts of North America. On January 18‚ 1778‚ Cook sighted O’ahu as well as Kauai. The Hawaiians treated Cook and his crew well and made trades‚ forming bigger bonds and
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