Question 1

With which of the following will the ammonium ion ($$\mathrm{NH_4$^+}) $$form an insoluble salt?

Accepted Answer

Carbonate

Question 2

Which one of the following is a diprotic acid?

Accepted Answer

Sulfuric acid

Question 3

Oxidation is the ______ and reduction is the ______.

Accepted Answer

Loss of electrons, gain of electrons

Question 4

Which of the following substances is produced during the reaction of an acid with a metal hydroxide?

Accepted Answer

$$\mathrm{H_2O}$$

Question 5

A strong electrolyte is one that ______ completely in solution.

Accepted Answer

Ionizes

Question 6

What are the spectator ions in the reaction between $$\mathrm{KCl} (aq) $$and $$\mathrm{$$AgNO_3$$} (aq$$)?

Accepted Answer

$$\mathrm{K^+}$$ and $$\mathrm{NO_3$^-}$$

Question 7

An aqueous ethanol solution (400 mL) was diluted to 4.00 L, giving a concentration of 0.0400 M. The concentration of the original solution was:

Accepted Answer

0.400 M

Question 8

How many grams of NaOH (MW = 40.0) are there in 500.0 mL of a 0.250 M NaOH solution?

Accepted Answer

5.00 g

Question 9

A chemical reaction that absorbs heat from the surroundings is said to be ______ and has a ______ $$\Delta H at $$constant pressure.

Accepted Answer

Endothermic, positive

Question 10

Which one of the following is an exothermic process?

Accepted Answer

Condensation of water vapor

Question 11

Which of the following combinations will produce a precipitate when mixed in aqueous solution?

Accepted Answer

$$\mathrm{$$BaCl_2$$}$$ and $$\mathrm{Na_2SO_4}$$

Question 12

Which of the following is a weak electrolyte?

Accepted Answer

$$\mathrm{CH_3COOH} ($$acetic acid)

Question 13

A solution is prepared by dissolving 0.50 mol of $$\mathrm{Na_2SO_4} in $$water. What is the total concentration of sodium ions in the solution?

Accepted Answer

1.0 M

Question 14

Which of the following is a redox reaction?

Accepted Answer

$$\mathrm{Zn} + \mathrm{$$CuSO_4$$} \rightarrow \mathrm{$$ZnSO_4$$} + \mathrm{Cu}$$

Question 15

If 25.0 mL of 0.100 M $$\mathrm{HCl} is $$neutralized by $$\mathrm{NaOH}$$, what volume of 0.0500 M $$\mathrm{NaOH} is $$required?

Accepted Answer

50.0 mL

Question 16

Which of the following statements about strong acids is correct?

Accepted Answer

They ionize completely in water

Question 17

Which of the following processes is endothermic?

Accepted Answer

Ice melting

Question 18

A student mixes 100 mL of 0.10 M $$\mathrm{$$AgNO_3$$}$$ with 100 mL of 0.10 M $$\mathrm{NaCl}. $$What mass of $$\mathrm{AgCl}$$ precipitate will form? ($$\mathrm{AgCl}$$ molar mass = 143.4 g/mol)

Accepted Answer

1.43 g

Question 19

Which of the following is the net ionic equation for the reaction between $$\mathrm{HCl}$$ and $$\mathrm{NaOH}$$?

Accepted Answer

$$\mathrm{H^+} + \mathrm{OH^-} \rightarrow \mathrm{H_2O}$$

Question 20

Which of the following is true about spectator ions?

Accepted Answer

They do not participate in the chemical reaction

General Chemistry Study Notes: Reactions in Aqueous Solution, Thermochemistry, and Electronic Structure

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