Which would be the most reliable source for information about the toxicity of an industrial chemical?
a webpage on the internet with no sources listed.
a brochure by a company that produces the chemical.
a scientific journal article that is peer–reviewed.
an opinion expressed by a chemistry professor.

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Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

The se-ci  bonds is more polar  than s-br bond