Reactions in Aqueous Solutions

Question 1

Which reaction would produce a solution that conducts electricity extremely well?

Revolt · Accepted Answer

Ca(NO3)2(s) Ca2+(aq) + 2NO3–(aq)

Question 2

Which formula represents a double displacement reaction?

Revolt · Accepted Answer

Pb(NO3)2(aq) + 2HCl(aq) 2HNO3(aq) + PbCl2(s)

Question 3

Which substance will most likely ionize when it is dissolved in water?

Revolt · Accepted Answer

HBr

Question 4

Which is an example of dissociation?

Revolt · Accepted Answer

Ca3(PO4)2 3Ca2+ + 2PO43–

Question 5

Shown below is an ion from a salt molecule.Which statement best explains the event?

Revolt · Accepted Answer

This is hydration, which occurs during dissociation.

Question 6

Consider the reaction below.Zn(s) + 2HCl(aq) H2(g) + ZnCl2(aq)Which product is a substance that is dissolved in solution?

Revolt · Accepted Answer

ZnCl2

Question 7

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute?

Revolt · Accepted Answer

a weak electrolyte

Question 8

For an experiment, a student needs a compound that has the following properties.• It dissolves in water.• It is an electrolyte.• It is excellent conductor of electricity.Which substance would be the best choice for the experiment?

Revolt · Accepted Answer

potassium chloride

Question 9

Which substance is a strong electrolyte?

Revolt · Accepted Answer

Ba(OH)2

Question 10

Which is a characteristic of a weak electrolyte?

Revolt · Accepted Answer

It partially dissociates or ionizes in water.

Reactions in Aqueous Solutions Answers

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