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aliya0001 [1]
3 years ago
5

Imagine a chemist is in the lab and trying to make some chemical reactions happen. In one reaction she reacts chemicals in an ex

othermic reaction and there is an increase in entropy. A second chemical reaction she is trying to run is endothermic and there is a decrease in entropy. Which of the two reactions is more likely to occur and why?
Chemistry
1 answer:
VikaD [51]3 years ago
4 0

Imagine a chemist is in the lab and trying to make some chemical reactions happen. In one reaction she reacts chemicals in an exothermic reaction and there is an increase in entropy. A second chemical reaction she is trying to run is endothermic and there is a decrease in entropy. Which of the two reactions is more likely to occur and why?

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<span>The next to outermost electron shell begins to fill up.</span>
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11111nata11111 [884]

Answer:

A. 2H₂O₂  → 2H₂O + O₂

Explanation:

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  • 2. H₂O₂ + OI⁻ → H₂O + O₂ + I⁻

If we <u>make a net sum of both reactions</u>, we're left with:

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Grouping species:

  • 2H₂O₂ + OI⁻ + I⁻ → 2H₂O + OI⁻ + O₂ + I⁻

There is OI⁻ at both sides, so it is eliminated -same goes for the catalyst, I⁻-.

  • 2H₂O₂  → 2H₂O + O₂

Thus the answer is option A.

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3 years ago
If the average atomic mass of Rhodium is 102.91 amu, which isotope do you think has the greater percent abundance?
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round up given mass to a whole number

\\ \sf\longmapsto 102.91

\\ \sf\longmapsto 102.9

\\ \sf\longmapsto 103

Hence our answer is Rhodium-103

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<span>Evaporation is the process of atoms or molecules in a liquid, or solid state (depending on the state of the substance sublimes) gains enough energy to become gaseous. </span>

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Cooled in ice to help the water vapour condense. Tube 2 – contains lime water, goes cloudy to show the presence of carbon dioxide. Word equation: (hydrocarbon + oxygen → carbon dioxide + water) Methane + oxygen → carbon dioxide + water.

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