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What do I know?<br />In this case the answer would be:<br />(a) the equation for the reaction<br />(b) the mass of aluminium used<br /><br />In some problems you will be given the equation; in this case the equation is not provided and you would be expected to write it down from your general chemical knowledge.<br /><br />2.

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Apr 24, 2017 · Find out the enthalpies of formation for all compounds involved in the reaction using the source given in Resources. Those values are usually given in kilojoules (kJ): Zn = 0 kJ HCl = -167.2 kJ ZnCl2 = -415.1 kJ H2 = 0 kJ Enthalpies of formation of elements such as Zn or H2 are equal to zero.

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Sample Exercise 3.4 1) Write an equation for the reaction that occurs when methanol (CH3OH) is burned in air. 2) Write an equation for the reaction that occurs when ethanol (C2H5OH) is burned in air. Practice Exercise 1 Write the balanced equation for the reaction that occurs when ethylene glycol, C2H4(OH) 2, burns in air.

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What is the change in enthalpy for this balanced reaction? HCl+NaOH-->NaCl+H2O Assume that the solution density is 1.00 g/mL, the specific heat capacity of the solution is 4.18 J/g x degrees C, and the volumes are additive. This page looks at reactions in which the -OH group in an alcohol is replaced by a halogen such as chlorine or bromine. It includes a simple test for an -OH group using phosphorus(V) chloride. Tertiary alcohols react reasonably rapidly with concentrated hydrochloric acid, but for primary or ...

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3.Given the following incomplete redox reaction, balance this equation in ACID solution with the set of smallest whole number coefficient: Zn(s) + NO3-(aq) --> Zn2+(aq) + N2(g) Identify the CORRECT statement below: