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topjm [15]
3 years ago
10

Where does the light we see from the moon come from?

Chemistry
1 answer:
barxatty [35]3 years ago
4 0
The reflection if the sun
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Which type of electromagnetic radiation is most likely to be non-ionizing
Sunny_sXe [5.5K]

Answer:

A)Radio.

Explanation:

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3 years ago
Estimate ΔG°rxn for the following reaction at 775 K. 2Hg(g) + O2(g) → 2HgO(s) ΔH°= -304.2 kJ; ΔS° = -414.2 J/K
hichkok12 [17]

Answer:

\Delta G^0_{rxn}=16.81kJ

Explanation:

Hello!

In this case, since the Gibbs free energy of any process is related with the enthalpy change, temperature and entropy change as shown below:

\Delta G^0=\Delta H^0-T\Delta S^0

For a chemical reaction it is simply modified to:

\Delta G^0_{rxn}=\Delta H^0_{rxn}-T\Delta S^0_{rxn}

Thus, since the enthalpy of reaction is given as -304.2 kJ and the entropy as -414.2 J/K (-0.4142 kJ/K), at 775 K the Gibbs free energy of reaction turns out:

\Delta G^0_{rxn}=-304kJ-775K*(-0.4142\frac{kJ}{K} )\\\\\Delta G^0_{rxn}=16.81kJ

Whose result means this is a nonspontaneous reaction.

Best regards!

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3 years ago
Order earths layers from highest temperature to lowest temperature .
Andreyy89
Inner Core, Outer Core, Lower Mantle, Upper Mantle, Crust.
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3 years ago
Why are fossils found mainly in sedimentary rock? choose all that apply
jeka94

<em>"Sedimentary rocks are formed by the pressure over millions of years of organic material, inorganic material, sediment of course , and earth piling up over itself. Metamorphic rock and igneous rock originate either below the surface where plants lived and creatures roamed, or the heat from volcanic activity transformed everything. Sedimentary rock formation is the only geologic activity that permits and allows organic material preservation and hence fossil formation." </em>- <u>Charles Snider, Co-Founder of American Geode (on Quora.com)</u>

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Why is sea water more dense than tap water? Give than explanation for these differences pleaseeee don’t copy off the internet :(
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Answer:

See below ~

Explanation:

Sea water has a <u>high amount of salt present</u> in it. The density of salt is <u>higher than that of water</u>. It <u>dissolves in water</u>, thereby increasing its density. Hence, this is why sea water has a higher density than tap water.

8 0
3 years ago
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