3 years ago

Which group on the Periodic Table reacts violently with water by igniting hydrogen gas?

Chemistry

1 answer:

Artemon [7]3 years ago

4 0

Answer:

the answer would be Halogens

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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

Annette [7]

Explanation:

We are given: entropy of Fe2O3 = 90J/K.mol

: entropy of C = 5.7J/K.mol

: entropy of Fe = 27.2J/K.mol

: entropy of CO = 198J/K.mol

$\begin{gathered} \Delta S\text{ = S}_{products}-S_{reactants} \\ \\ \text{ = \lparen3}\times198+2\times27.2)-(3\times5.7+90) \\ \\ \text{ = 541.3J/K.mol} \end{gathered}$

Answer:

The correct answer is C.

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1 year ago

A piece of solid carbon dioxide with a mass of 5.50 grams is placed in a 10 Liter vessel that already contains 705 torr at 24 Ce

alex41 [277]

total pressure = ( 705 torr + 231.525torr) = 936.525torr

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3 years ago

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vagabundo [1.1K]

4A I think I'm sorry if it is wrong

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3 years ago

When a bond between a hydrogen atom and a sulfur atom is formed, electrons are?

nekit [7.7K]

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A- Change the phase of the matter

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