Which, If Any of the Following Correctly Shows the Balanced $\rarr$

question 121

Multiple Choice

Which, if any of the following correctly shows the balanced molecular equation for the reaction that occurs when aqueous solutions of potassium iodide and lead(II) nitrate are combined.

• A)2KI(aq) + Pb(NO₃)₂(aq) \(\rarr\) PbI₂(s) + KNO₃(aq)
• B)KI(aq) + Pb(NO₃)₂(aq) \(\rarr\) PbI₂(s) + 2KNO₃(aq)
• C)2KI(aq) + Pb(NO₃)₂(aq) \(\rarr\) PbI₂(s) + 2KNO₃(aq)
• D)2KI(aq) + 2Pb(NO₃)₂(aq) \(\rarr\) PbI₂(s) + 2KNO₃(aq)
• E) None of the above

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Definitions:

Subjective Sampling

A sampling method where the samples are selected based on the opinion or judgment of the selector rather than random or statistical methods.

Uniformly Distributed

A type of distribution where all outcomes are equally likely within a certain range.

Random Sampling

The process of selecting a subset of individuals from a population in such a way that every individual has an equal chance of being selected.

Statistical Applications

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