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Write the molecular equation, with physical states [(g), (l), (s), (aq)], total

ID: 521360 • Letter: W

Question

Write the molecular equation, with physical states [(g), (l), (s), (aq)], total ionic and net ionic equations for each of the following reactions. All equations must be balanced a. Solutions of ammonium acetate and calcium sulfate are mixed Molecular: _______ Total: ______ Net: _______ b. Barium sulfate solution is added to potassium hydroxide solution Molecular: _____ Total: ______ Net: ______ c. Aluminum is added to a nitric acid solution Molecular: ________ Total: _____ Net: _______ d. Solutions of sodium sulfite and nitric acid are mixed Molecular: ______ Total: ______ Net: _____

Explanation / Answer

(a)

Molecular equation:

2 NH4CH3COO (aq.) + CaSO4 (aq.) ------> (NH4)2SO4 (aq.) + Ca(CH3COO)2 (aq.)

Complete ionic equation:

2NH4+(aq.)+2CH3COO-(aq.)+Ca2+(aq.)+SO42-(aq.)--->2NH4+(aq.)+SO42-(aq.)+Ca2+(aq.)+2CH3COO-(aq.)

No net reaction occurs.

(b)

Molecular equation:

BaSO4 (aq.) + 2 KOH (aq.) -----------> Ba(OH)2 (aq.) + K2SO4 (aq.)

Complete ionic equation:

Ba2+(aq.)+SO42-(aq.)+2K+(aq.)+2OH-(aq.)------>Ba2+(aq.)+2OH-(aq.)+2K+(aq.)+SO42-(aq.)

No net reaction occurs.

(c)

Molecular equation:

2 Al (s) + 6 HNO3 (aq.) ---------> 2 Al(NO3)3 (aq.) + 3 H2 (g)

Complete ionic equation:

2 Al (s) + 6 H+ (aq.) + 6 NO3- (aq.) ------>2 Al3+ (aq.) + 6 NO3- (aq.) + 3 H2 (g)

Net ionic equation:

2 Al (s) + 6 H+ (aq.) -----------------> 2 Al3+ (aq.) + 3 H2 (g)

(d)

Molecular equation:

Na2SO3 (aq.) + 2 HNO3 (aq.) ------> 2 NaNO3 (aq.) + SO2 (g) + H2O (l)

Complete ionic equation:

2Na+(aq.)+SO32-(aq.)+2H+(aq.)+2NO3-(aq.)--->2Na+(aq.)+2NO3-(aq.)+SO2(g)+H2O(l)

Net ionic equation:

SO32-(aq.) + 2 H+ (aq.) ----------> SO2 (g) + H2O (g)