3 years ago

Mercury’s name means ____________.

Chemistry

1 answer:

ruslelena [56]3 years ago

7 0

It means messenger god.

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What is the value of δg°' (or, to put it another way, the cost) when 2nadp+ and 2h2o are converted to 2nadph plus 2h+ plus o2?

svp [43]

The answer is 104.9, i dont know how though

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3 years ago

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The combustion of ethene in the presence of excess oxygen yields carbon dioxide and water: c2h4 (g) + 3o2 (g) → 2co2 (g) + 2h2o

meriva

Answer:

$\boxed{-267.5}$

Explanation:

You can calculate the entropy change of a reaction by using the standard molar entropies of reactants and products.

The formula is

$\Delta_{r} S^{\circ} = \sum_n {nS_{\text{products}}^{\circ} - \sum_{m} {mS_{\text{reactants}}^{\circ}}}$

The equation for the reaction is

C₂H₄(g) + 3O₂(g) ⟶ 2CO₂(g) + 2H₂O(ℓ)

ΔS°/J·K⁻¹mol⁻¹ 219.5 205.0 213.6 69.9

$\Delta_{r} S^{\circ} = (2\times213.6 + 2\times69.9) - (1\times219.5 + 3\times205.0)\\\\= 567.0 - 834.5 = \boxed{-267.5 \text{ J}\cdot\text{K}^{-1} \text{mol}^{-1}}$

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3 years ago

PLEASE HELP

Varvara68 [4.7K]

Ok measure atoms the answer is B

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3 years ago

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This drawing shows a human body system.

Alexxx [7]

Answer:its A ( the transport of nutrients,water,oxygen to body cells

Explanation:

I just did it :)

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3 years ago

PLEASE ANSWER AS SOON AS POSSIBLE! 25 Pts

vovikov84 [41]

Um Is there a picture :/

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3 years ago