4. Howell iron works purchased came with a furnace which was named Howell Iron works then traditionally pig iron would be worked into wrought iron in finery forges and later putting the furnaces more recently into steel. In these processes, pig Iron is melted and a strong current of air is directed over it while it is being stirred or agitated. This cause the dissolved impurities to be thoroughly oxidized. An intermediate known as refined iron, refined metal, and refined iron.
The casting process: Lynchburg and Archer Creek Plants A casting was made by pouring molten metal into a sand mold of the desired shaped. Once the metal, leaving a casting. There were four steps in making a casting: melting and allowing the metal, making molds and cores. Melting and Alloying The raw matterials were received by rail car in the iron yard behind the plant. The raw materials included coke for melting fuel, limestone to promote the coagulation of slag or impurities, pig iron for carbon and silicon, and steel scrap for the iron
I will be discussing factors that cause differences in hazards posed by volcanoes. I believe the most important factor is the location of a volcano and the type of volcano. The most explosive and therefore dangerous volcanoes are found on destructive plate boundaries (Over 80% of the worlds volcanoes occur at these boundaries) for example the eruption of the Nevado del Ruiz in Colombia on the 13th November in 1985 which killed over 25000 residents of Arenas and Armero. At destructive plate margins, the oceanic crust is denser than continental crust and is therefore subducts under the continental crust. Due to high temperatures in the mantle of around 3000 degrees centigrade, this oceanic crusts melts and then rises due to the convection currents in the aesthenosphere .
All sales are made on account at $20 per unit. Sixty percent of the sales are collected in the month of sale; the remaining 40% are collected in the following month. Forecasted sales for the first five months of 20X2 are: January, 1,500 units,- February, 1,600 units; March, 1,800 units; April, 2,000 units; May, 2,100 units. 2. Management wants to maintain the finished goods inventory at 30% of the following month's sales.
How many moles of ammonium sulfate can be made from the reaction of 30.0 mol of NH3 with H2SO4 according to the following equation: ans. 15 mol (NH4)2 SO4 2NH3 + H2SO4 ( (NH4)2 SO4 2. In a very violent reaction called a thermite reaction, aluminum metal reacts with iron(III) oxide to form iron metal and aluminum oxide according to the following equation: Fe2O3 + 2Al ( 2Fe + A12O3 a. What mass of Al will react with 150 g of Fe2O3? ans.
Some mining involves the inadvertent dispersal of heavy metals, such as lead, into the atmosphere. This can have serious health effects 4. What can be done to prevent mine drainage from damaging the ecosystem? Utilize at least one scholarly resource to support your suggestions. Answer = According to World Coal, there are mining
End of Lesson Questions Instruction: ANSWER ALL QUESTIONS CORRECTLY 1. Determine three other Alloys apart from those in your notes and give examples of their uses 2. Explain with diagrams why alloys are harder and stronger than pure metals 3. The table below gives the density, M.P. and electrical conductivity of some metals Based on the data provided in the table below and your knowledge of the reactivity series, answer the following questions: a.
Benzene has been known to be a carcinogen, while the rest of the chemicals are unknown what long term damage it could cause. Another danger of fracking are spills. Spills occur during the adding of the fluids as well as during the results of the flow back. Drill operators will eventually have spills throughout this process. Hoses can be undone, gaskets can fail, pits leak and liquids always hit the ground, repeatedly in large quantities.
Large amounts of methane and other poisonous gases released into the air from the gas wells contribute to heavy air pollution and global warming. Fracking has been linked to movement of radioactive materials and heavy metals from the underground layers of the earth to the surface through flow-back
Fracking is also hard on the environment. The land used for fracking has to be cleared to build new access roads and new sites where fracking is performed. Trucks and heavy equipment have to be brought into these sites. The trucks also carry out toxic waste. 30-50 percent on the fluids used to perform fracking as left behind.