Answer:
Combination of all the wavelengths of visible light.
Explanation:
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A. When two chemicals mix their temperature rise: <span>Exothermic
b. </span>A solid burns brightly and releases heat, light and sound: <span>Exothermic
c. </span>When two chemicals are mixed their temperature drops: <span>Endothermic
d. </span>Two chemicals will only react if you heat them continually: <span>Endothermic
e. </span>Plants take in light energy for photosynthesis: <span>Endothermic
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Answer:
6.2g of sugar solution contains 72.5g
Answer:

Explanation:
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At first, we compute liquid-phase molar fractions:

Now, by means of the fugacity concept, for hexane, for instance, we have:

In this manner, at 25 °C the vapor pressure of hexane and heptane are 0.198946 atm and 0.013912 atm repectively, thus, the total pressure is:

Finally, from the hexane's fugacity equation, we find its mole fraction in the vapour as:

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