Net Ionic Equations: Expected Observations for Chemical Reactions (True/False)

[veena]

elect "True" or "False" to indicate whether or not the stated reaction (or "no reaction") correctly corresponds to the expected observation in each case.


Sodium bromide and hydrochloric acid; Na+(aq) + Cl-(aq) --> NaCl(s)

Copper(II) sulfate and ammonium carbonate; Cu2+(aq) + CO32-(aq) --> CuCO3(s)

Calcium acetate and sodium carbonate; Ca2+(aq) + 2C2H3O2-(aq) --> Ca(C2H3O2)2(s)

Magnesium chloride and sodium hydroxide; Mg2+(aq) + 2OH-(aq) --> Mg(OH)2(s)

Ammonium sulfate and barium nitrate; No reaction occurs.


can u please help me in this Select "True" or "False" to indicate whether or not the stated reaction (or "no reaction") correctly corresponds to the expected observation in each case.

 

[eli64]

for each equation write the molecular, ionic and net ionic equation for each double replacement (aka methathesis reaction)

Ex.
NaBr( ) + HCl( )---> NaCl( ) + HBr( )
look up the solubilities of the reactants and products --- are they (aq) or (s) ?
Ionic reaction:
anything that is aq, can be written as dissociated like Na+(aq) + Br-(aq)
if everything is the same on the left and the right, all cancels, no net ionic
If something has (s), cannot dissociate, there will be a net ionic equation

so working out your own solution for the net ionic and compare with what the given statements are and you can determine if the statements are true or false

 

[Blueshift5]

Sodium bromide and hydrochloric acid; False (The expected observation would be a colorless solution, not a solid)

Copper(II) sulfate and ammonium carbonate; True (The expected observation would be a precipitate formation)

Calcium acetate and sodium carbonate; True (The expected observation would be a precipitate formation)

Magnesium chloride and sodium hydroxide; True (The expected observation would be a precipitate formation)

Ammonium sulfate and barium nitrate; True (The expected observation would be a precipitate formation)