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Question
Which of the following is not an example of "fixing" nitrogen?A) Scientists combine dinitrogen and hydrogen gases to form ammonia.
B) Bacteria convert dinitrogen from the atmosphere into ammonium ion and nitrate ion containing compounds.
C) Denitrifying bacteria decompose organic compounds into dinitrogen gas.
D) When magnesium combusts in air, some magnesium also reacts with dinitrogen to produce magnesium nitride.
E) Lightning strikes in the atmosphere produce nitrogen monoxide from dinitrogen and dioxygen gases.
Answer
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Q:
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Q:
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Q:
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Q:
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Q:
If a reaction is first-order with respect to a particular reactant, when the concentration of that reactant is increased by a factor of 2, the reaction rate will _____.
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Q:
For a certain first-order reaction with the general form aA → products, the rate is 0.32 M·s-1 when the concentration of the reactant is 0.29M. What is the rate constant for this reaction?A) 0.26 s-1B) 1.1 s-1C) 0.32 s-1D) 3.1 s-1E) 3.8 s-1