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The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2 Al2O3(s) AH = -3352 kJ How much heat is re
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What mass of oxygen is consumed by the complete combustion of 7.0 grams of ethylene, C2H4? Molar mass of C2H4 = 28.05 g/mol C
When 27.0 g of an unknown metal at 88.4 °C is placed in water, the metal is cooled and loses 1300 J of energy. If the final t
Calculate AH for the following reaction, CaO(s) + CO2(g) CaCO3(s) given the thermochemical equations below. 2 Ca(s) + O2(g) –
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Answer #1

4A1+30 7 201203 AH = - 3352 kJ/mole of Al reacted 12olg of Al react . molos of Al reacted a mais molon may 0.448 - 1201g 27 (G Hyt 302 202 +420 Imol of Catly require 3 mol O2 so 28 g of sty require 34 32g Oz -7g Estly require = 3x32 28 x =2ugar HeatCao + Co2 y Caloz - a Catoz lao An = -1270.2 - ( + 02 Co2 142-39315 2 (a+20+302 +2(aloz 042-2413.80-66 0 we get ala+30+302 -

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