Questions from General Chemistry


Q: Consider the general reaction 2A( g) + B(

Consider the general reaction 2A( g) + B(s) ⇌ C( g) + 3D( g) ∆H = 1115 kJ/mol which has already come to equilibrium. Predict whether the equilibrium will shift to the left, will shift to the right,...

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Q: Hydrogen gas and chlorine gas in the presence of light react explosively

Hydrogen gas and chlorine gas in the presence of light react explosively to form hydrogen chloride H2( g) + Cl2( g) ⇌ 2HCl( g) The reaction is strongly exothermic. Would an increase in temperature fo...

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Q: Hydrogen gas, oxygen gas, and water vapor are in equilibrium

Hydrogen gas, oxygen gas, and water vapor are in equilibrium in a closed container. Hydrogen gas is injected into the container, and the system is allowed to return to equilibrium. Which of the follow...

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Q: The reaction C2H2(g) + 2Br2(g)

The reaction C2H2(g) + 2Br2(g) ⇌ C2H2Br4(g) is exothermic in the forward direction. Will an increase in temperature shift the position of the equilibrium toward reactants or products?

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Q: When molecules collide, a certain minimum energy called the is needed

When molecules collide, a certain minimum energy called the is needed for the reaction to occur.

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Q: How do the properties of a nonhomogeneous (heterogeneous) mixture differ

How do the properties of a nonhomogeneous (heterogeneous) mixture differ from those of a solution? Give two examples of nonhomogeneous mixtures.

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Q: A strong acid has a weak conjugate base, whereas a weak

A strong acid has a weak conjugate base, whereas a weak acid has a relatively strong conjugate base. Explain.

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Q: Old fashioned “smelling salts” consist of ammonium carbonate, (

Old fashioned “smelling salts” consist of ammonium carbonate, (NH4)2CO3. The reaction for the decomposition of ammonium carbonate (NH4)2CO3(s) ⇌ 2NH3(g) + CO2(g) + H2O(g) is endothermic. What would b...

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Q: Plants synthesize the sugar dextrose according to the following reaction by absorbing

Plants synthesize the sugar dextrose according to the following reaction by absorbing radiant energy from the sun (photosynthesis). 6CO2(g) + 6H2O(g) ⇌ C6H12O6(s) + 6O2(g) Will an increase in...

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Q: Suppose a reaction has the equilibrium constant K 5 1.7

Suppose a reaction has the equilibrium constant K 5 1.7 * 10-8 at a particular temperature. Will there be a large or small amount of unreacted starting material present when this reaction reaches equi...

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