<em>the</em><em> </em><em>number</em><em> of</em><em> </em><em>nitrogen</em><em> </em><em>atoms</em><em> </em><em>in</em><em> </em><em>the </em><em>compound</em><em> </em><em>is</em><em> </em><em>two</em>
The energy comes from the breaking of bonds that is present between kerosene molecules.
<h3>How energy released from kerosene?</h3>
When fuels are burned, the chemical energy that is present in kerosene molecules. This energy can be used to generate other form of energy, such as heat, light, motion, or electricity so we can conclude that the energy comes from the breaking of bonds that is present between kerosene molecules.
Learn more about energy here: brainly.com/question/13881533
The answer is D hope you get 100%
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Theoretical yield is the amount supposedly produced by the reaction if it was complete. The balanced chemical reaction is:
Fe2O3(s) + 3 CO<span>(g) = 2 Fe(s) + 3 </span>CO<span>2(g)
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We use the amounts given for the reactants as the starting point of the calculations. We do as follows:
13.4 g Fe2O3 ( 1 mol / <span>159.69 g ) = 0.08 mol
</span>12.3 g CO ( 1 mol / 28.01 ) = 0.44 mol
Therefore, the limiting reactant would be Fe2O3. We use this for the theoretical yield.
0.08 mol ( 2 mol Fe / 1 mol Fe2O3 ) = 0.16 mol Fe (THEORETICAL YIELD)
8.23 g ( 1 mol / 55.85 g ) = 0.15 mol Fe ( ACTUAL YIELD)
Percent yield = 0.15 / 0.16 x 100 = 93.75%
