A Mixture of Hydrogen and Chlorine Remains Unreacted Until It

question 9

Multiple Choice

A mixture of hydrogen and chlorine remains unreacted until it is exposed to ultraviolet light from a burning magnesium strip. Then the following reaction occurs very rapidly. Select the statement below that best explains this behavior.

• A) The reactants are thermodynamically more stable than the products.
• B) The reaction is spontaneous, but the reactants are kinetically stable.
• C) The reaction has a small equilibrium constant.
• D) The ultraviolet light raises the temperature of the system and makes the reaction more favorable.
• E) The negative value for  S slows down the reaction.

Identify the adaptations of fungi to parasitism and symbiosis.

Analyze the impact of fungi on human activities and the environment.

Understand the fundamental gas laws including Boyle's, Charles', and Gay-Lussac's laws, and their applications.

Apply the combined gas law to solve problems involving changes in pressure, volume, and temperature of gases.

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