3 years ago

Which statements describe the elements? Which ones are true and which ones are false?

Chemistry

1 answer:

Alchen [17]3 years ago

8 0

Answer:

Explanation:

Uma declaração verdade é identificada pelo de ela afirmar a verdade diferente das outras opções

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The value of ΔS° for the oxidation of solid elemental sulfur to gaseous sulfur dioxide, S (s, rhombic) + O2 (g) → SO2 (g) is ___

Alexus [3.1K]

Answer:

$\large \boxed{\text{11.3 J$\cdot$K$^{-1}$mol$^{-1}$}}$

Explanation:

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

The formula is

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

The equation for the reaction is

S(s, rhombic) + O₂(g) ⟶ SO₂(g)

ΔS°/J·K⁻¹mol⁻¹ 31.8 205.0 248.1

$\Delta_{r} S^{\circ} = 248.1 - (31.8 + 205.0) =248.1 - 236.8 = \large \boxed{\textbf{11.3 J$\cdot$K$^{-1}$mol$^{-1}$}}$

The difference probably arises for our use of different sources for the molar entropies.

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3 years ago

What is a current?

Agata [3.3K]

is C a flow of electrons

Explanation:

because yeah I think Soo :D I'm not smart but I tried UwU

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solong [7]

C. An ionic bond is a bond between charged atoms while a covalent bond is a bond between opposite charges

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Neko [114]

Answer:

the law of conversation of mass States that mass is an isolated system is neither created or destroyed by chemical reactions or physical transformations. according to the law of conversation of mass the mass of the product in a chemical reaction must equal to the mass of reactants

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