Answer:

Explanation:
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In this case, the undergoing chemical reaction is shown below:

Thus, we obtain 0.0471 g of lead (II) sulfate, the iodide ions in the original solution are computed below by stoichiometry, taking into account that into 1 mole of lead (II) iodide there are 2 moles of iodide ions:

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Mass of 1 centigram is equal to 0.01 grams
So, option C is your answer!
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As defined by Arrhenius: An Arrhenius acid is a substance that dissociates in water to form hydrogen ions (H+). ... An Arrhenius base is a substance that dissociates in water to form hydroxide (OH–) ions. In other words, a base increases the concentration of OH– ions in an aqueous solution.
Because they could have an explosive reaction and could possibly hurt you