{"id":116,"date":"2017-12-14T21:26:18","date_gmt":"2017-12-14T21:26:18","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/suny-mcc-introductorychemistry\/chapter\/introduction-to-chemical-reactions-and-equations\/"},"modified":"2017-12-14T21:26:18","modified_gmt":"2017-12-14T21:26:18","slug":"introduction-to-chemical-reactions-and-equations","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/suny-introductory-chemistry\/chapter\/introduction-to-chemical-reactions-and-equations\/","title":{"raw":"Introduction to Chemical Reactions and Equations","rendered":"Introduction to Chemical Reactions and Equations"},"content":{"raw":"
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The space shuttle\u2014and any other rocket-based system\u2014uses chemical reactions to propel itself into space and maneuver itself when it gets into orbit. The rockets that lift the orbiter are of two different types. The three main engines are powered by reacting liquid hydrogen with liquid oxygen to generate water. Then there are the two solid rocket boosters, which use a solid fuel mixture that contains mainly ammonium perchlorate and powdered aluminum. The chemical reaction between these substances produces aluminum oxide, water, nitrogen gas, and hydrogen chloride. Although the solid rocket boosters each have a significantly lower mass than the liquid oxygen and liquid hydrogen tanks, they provide over 80% of the lift needed to put the shuttle into orbit\u2014all because of chemical reactions.<\/p>\n\n

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\n\n[caption id=\"attachment_3208\" align=\"alignnone\" width=\"400\"]\"Source:<\/a> Source: \u201cDelta IV Medium Rocket DSCS\u201d by U.S. Air Force is is in the public domain[\/caption]\n\n<\/div>\n<\/div>\n<\/div>\n

Chemistry is largely about chemical changes. Indeed, if there were no chemical changes, chemistry as such would not exist! Chemical changes are a fundamental part of chemistry. Because chemical changes are so central, it may be no surprise that chemistry has developed some special ways of presenting them.<\/p>\n\n<\/div>\n<\/div>","rendered":"

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The space shuttle\u2014and any other rocket-based system\u2014uses chemical reactions to propel itself into space and maneuver itself when it gets into orbit. The rockets that lift the orbiter are of two different types. The three main engines are powered by reacting liquid hydrogen with liquid oxygen to generate water. Then there are the two solid rocket boosters, which use a solid fuel mixture that contains mainly ammonium perchlorate and powdered aluminum. The chemical reaction between these substances produces aluminum oxide, water, nitrogen gas, and hydrogen chloride. Although the solid rocket boosters each have a significantly lower mass than the liquid oxygen and liquid hydrogen tanks, they provide over 80% of the lift needed to put the shuttle into orbit\u2014all because of chemical reactions.<\/p>\n

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Source: \u201cDelta IV Medium Rocket DSCS\u201d by U.S. Air Force is is in the public domain<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Chemistry is largely about chemical changes. Indeed, if there were no chemical changes, chemistry as such would not exist! Chemical changes are a fundamental part of chemistry. Because chemical changes are so central, it may be no surprise that chemistry has developed some special ways of presenting them.<\/p>\n<\/div>\n<\/div>\n\n\t\t\t

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Candela Citations<\/h3>\n\t\t\t\t\t
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CC licensed content, Shared previously<\/div>