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stiv31 [10]
3 years ago
15

This atom has two neutral charged subatomic particles and two negatively charged subatomic particles. What is this atom?

Chemistry
1 answer:
VLD [36.1K]3 years ago
8 0

Answer: helium is the answer

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Sabendo que os calores de combustão do enxofre monoclínico e do enxofre rômbico são, respectivamente, - 297,2 kJ/mol e - 296,8 k
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Responda:

+ 0,9kJ / mol

Explicação:

Dados os calores de combustão do enxofre monoclínico e enxofre rômbico como - 297,2 kJ / mol e - 296,8 kJ / mol, respectivamente para a variação na transformação de 1 mol de enxofre rômbico em enxofre monoclínico conforme mostrado pela equação;

S (mon.) + O2 (g) -> SO2 (g)

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∆H = -296,8 - (- 297,2)

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∆H = + 0,9kJ / mol

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