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Igniting Magnesium
Nearly 200 Chicago Fire Department personnel required almost 45 pieces of fire suppression and rescue equipment to fight a spectacular magnesium-fueled blaze that
broke out at a metal recycling complex on August 31, 1998. Magnesium, a light, silvery-white, and fairly tough metal, is an important alloying agent for improving the working characteristics
of aluminum and zinc. It makes them easier to roll, extrude, weld and machine. Magnesium and magnesium alloys are used in a wide variety of structural and nonstructural applications. Magnesium
is used in flashlight photography, flares, pyrotechnics and incendiary bombs. Great care should be taken in handling magnesium metal, especially in the finely divided state, as serious
fires can occur. |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078664187/179001/ch10_1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (21.0K)</a>]]> |
Burning magnesium in air
Magnesium reacts with both oxygen and nitrogen in a strongly exothermic reaction to produce magnesium oxide and magnesium nitride. This reaction was used in the early days of photography
in the so-called "lightning powder," which contained magnesium powder and an oxidizing agent, such as calcium chloride. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_1.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Write and balance the chemical equation for the reaction between magnesium and oxygen. Identify the type of reaction. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_2.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Write and balance the chemical equation for the reaction between magnesium and nitrogen. Identify the type of reaction. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_3.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Magnesium also burns in dry ice. The magnesium burned even brighter and glowed white-hot for a long time. Upon separating
the dry ice blocks, the shiny magnesium metal had been "transmutated" into carbon and a white solid, suspected to be magnesium oxide. Write and balance the chemical equation
for the reaction between magnesium and carbon dioxide. Identify the type of reaction. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_4.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Magnesium reacts slowly with cold water, but very exothermically with steam. The products of this reaction are magnesium
oxide and hydrogen. Write and balance the chemical equation for the reaction between magnesium and steam. Identify the type of reaction. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_5.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Should water be used to put out a magnesium fire? Explain your answer. |
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 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078664187/179001/POWproblem_6.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>]]> | Would a carbon dioxide fire extinguisher work on a magnesium fire? Explain your answer. |
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Chemistry: Periodic Table:
magnesium
Magnesium |
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