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3 years ago

What happens when sodium reacts with fluorine to produce sodium fluoride???

Chemistry

1 answer:

zalisa [80]3 years ago

3 0

Balanced chemical reaction: 2Na(s) + F₂(g) → 2NaF(s) + energy.

This is exothermic reaction (energy or heat is released), because reactants have higher energy than products of reaction.

In ionic salt sodium fluoride (NaF), fluorine has electronegativity approximately χ = 4 and sodium χ = 1 (Δχ = 4 - 1; Δχ = 3), fluorine attracts electron and it has negative charge and sodium has positive charge.

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3 years ago

When 0.20 mol of hydrogen gas and 0.15 mol of iodine gas are heated at 450 °C until equilibrium is established, the equilibrium

Soloha48 [4]

Answer:

$Kc=\frac{[HI]^2}{[I_2][H_2]}$

Explanation:

Hello there!

In this case, for these equilibrium problems it is firstly necessary to know the balanced reaction at equilibrium:

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Next, by means of the law of mass action, it turns out possible for us to write the required and correct expression for the equilibrium constant by considering the concentrations and the coefficients in the aforementioned reaction:

$Kc=\frac{[HI]^2}{[I_2][H_2]}$

Best regards!

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