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PSYCHO15rus [73]
2 years ago
5

Which process contributes to the formation of layers in protoplanets when unstable elements release particles and energy?

Chemistry
2 answers:
Korolek [52]2 years ago
8 0

Answer:

radioactive decay

Explanation:

i just took the guiz and got it right

sertanlavr [38]2 years ago
5 0

Answer:

c

Explanation:

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2 years ago
Calculate the entropy change for the reaction: Fe2O3(s) +3C(s) -> 2Fe(s) + 3CO(g)Entropy data:Fe2O3(s): 90 J/K molC(s): 5.7 J
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\begin{gathered} \Delta S\text{ = S}_{products}-S_{reactants} \\  \\ \text{       = \lparen3}\times198+2\times27.2)-(3\times5.7+90) \\  \\ \text{       = 541.3J/K.mol} \end{gathered}

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The correct answer is C.

5 0
9 months ago
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