Reactions in Solution

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Which of the following solutions contains more ions (cations plus anions)?

When lead(II)nitrate and sodium sulfide solutions are mixed, what will precipitate?

Aluminum reacts with bromine to produce aluminum bromide and the product is dissolved in 100.0 mL of water. If 75.0 mg of aluminum reacts with excess bromine, how many mg of bromide ion will be present in 50 mL of the solution?

Of the compounds Ba(NO3)2, CaCO3, MgI2, RbNO3, Cs2CO3, and LiI, which are not strong electrolytes.

A 25 mL pipet is used to transfer 2.50 M Na2SO4 to a 500 mL volumetric flask. What is the concentration of sodium ions when the solution is diluted to the mark and mixed?

Which of the following does not produce a 3.00 M solution?

When 100.0 mL of 0.200 mL of silver nitrate solution is mixed with 75.00 mL of 0.15 M magnesium chloride solution which will be the limiting reactant?

When 100 mL of 0.200 M KOH is mixed with 100 mL of 0.200 M MgCl2, how many grams of precipitate will be formed?