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Question
The EPA limit for lead in the soil of play areas is 400 ppm. This is the same asA) 400 mg lead in each gram of soil.
B) 400 g lead in each kilogram of soil.
C) 400 mg lead in each kilogram of soil.
D) 400 g lead in each kilogram of soil.
E) 400 g lead in each milligram of soil.
Answer
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Related questions
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Identify the Brnsted-Lowry acids in the following reaction.H2O + CO32- ->HCO3- + OH-A) H2O/HCO3-B) CO32-/HCO3-C) OH-/HCO3-D) CO32-/OH-E) H2CO3/H2O
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According to the Brnsted-Lowry definition,
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B) a base produces H+ ions in aqueous solutions.
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In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the initial reaction mixture? The reaction is shown below.N2(g) + O2(g) -> 2NO(g)A) The equilibrium shifts to produce more N2.B) The equilibrium shifts to produce more NO.C) The equilibrium is not affected.D) Extra catalyst is required to reach equilibrium.E) The temperature of the reaction mixture is raised.
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A chemical reaction has reached equilibrium when
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Q:
During the process of diluting a solution to a lower concentration,
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