Question

Which of the following actions will cause the equilibrium to shift such that the concentration of NOgas will increase?

2NO(g) + 2H2(g) ? N2(g)+2H2O+heat

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Which of the following actions will cause the equilibrium to shift such that the concentration of gas will increase?

Decrease the concentration of N2(g)

Increase the concentration of H2O(g)

Increase the concentration of H2(g)

Lower the reaction temperature

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Part B

Which equilibrium reaction will experience a shift towards the products in equilibrium position when the concentration of Ni2+ is increased?

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Which equilibrium reaction will experience a shift towards the products in equilibrium position when the concentration of is increased?

NiS(s)?Ni2+(aq)+S2?(aq)

[Ni(H2O)6]2+(aq)+3en(aq)?[Ni(en)3]2+(aq)+6NH3(aq)

Ni(OH)2(s)?Ni2+(aq)+2OH?(aq)

Ni2+(aq)+6NH3(aq)?[Ni(NH3)6]2+

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Part C

When this reaction in equilibrium is heated, a red/brown color persists. What is true about this reaction?

2NO2(g)brown/red?N2O4(g)colorless

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When this reaction in equilibrium is heated, a red/brown color persists. What is true about this reaction?

The reaction is exothermic.

?H for this reaction is positive.

Heat acts as a reactant in this equilibrium.

The increase in T results in a high K value.

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