Answer:
Explanation:
The missing image is shown in the first file attached below:
We are to find and identify the structure of an unknown organic compound of C9H10O3 molecule and the material that is produced after the first step.
This concept from the catalyst given can be called reducitve amination. It is an organic reaction in which carbonyl compound are being converted into amines via an intermediate called imines.
For a general reductive amination; we have:

The second step is displayed in the second diagram below showing the structures of the unknown C9H10O3 molecule and the material that is produced after the first step.
Answer:
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The Clausius-Clapeyron equation:
ln(P₁/P₂) = ΔH/R * (1/T₂ - 1/T₁)
-25 °C = 248 K and pressure is 344 torr
-6.4 °C = 266.6 K and pressure is 760 torr (atmospheric)
Using the equation:
ln(760/344) = ΔH/62.364 * (1/248 - 1/266.6)
ΔH = 175.7 kJ/mol
Answer:
When energy is either absorbed or released, it is indicative of a chemical change. Fireworks are an example of a chemical change that produces a temperature change and emits light.