UNKNOWN IDENTITY AND EQUATIONS UNKNOWN CATION IDENTITY: Write moleculat, ionic,
ID: 882628 • Letter: U
Question
UNKNOWN IDENTITY AND EQUATIONS UNKNOWN CATION IDENTITY: Write moleculat, ionic, and net-ionic equations for the reaction of YOUR UN KNOWN it has nitrate as the anion) with each of the eight anion test solutions. If no reaction occurs, complete the molecular and ionic equations, but write "No Reaction in place of the net-ionic equation. Underlinc all solids, Include the physical state (s) (ag). etc.) for all species NaC ionic nct-ionic ionic: net-ionic ionic net-ionic ionic net-ionic + Na onic: net-ionic:Explanation / Answer
1) Ions are formed in water, but no chemical reaction ocurrs
NaCl -----> Na+ + Cl-
sodium chloride forms a positive sodium ion and a negative chloride ion in water.
Ca(NO3)2 -------->Ca+2) + 2NO3-
In water, the calcium nitrate forms a calcium ion with a positive charge of 2. Two negative nitrate ions are generated to balance the charge.
2NaCl + Ca(NO3)2--->2NaNO3 +CaCl2
this is a double displacement but both are soluble and colorless, so you may not see anything.
simlarly with NaBr and NaI also
with Na2CO3
Na2CO3(aq) + Ca(NO3)2 (aq) ------ 2 NaNO3 (aq) + CaCO3 ( s)
total ionic
Ca+2(aq) + 2NO3-(aq) + 2Na+(aq) + CO3-2(aq) ----->CaCO3(s) + 2Na+(aq) + 2NO3-(aq)
net ionic
Ca+2(aq) + CO3-2(aq) --> CaCO3(s)
With Na2SO4
Ca(NO3)2(aq) + Na2SO4 (aq) --------> CaSO4(s) + 2 NaNO3(aq)
Total Ionic :
Ca+2(aq) + 2 NO3-1(aq) + 2 Na+1(aq) + SO4-2(aq) -----> CaSO4(s) + 2 Na+1(aq) + 2 NO3-1(aq)
Net-Ionic Equation:
Ca+2(aq) + SO4-2(aq) ------> CaSO4(s)
With NaOH
Overall equation:
Ca(NO3)2 (aq) + 2 NaOH (aq) ------> Ca(OH)2 (s) + 2 NaNO3 (aq)
Total Ionic :
Ca+2(aq) + 2 NO3-1(aq) + 2 Na+1(aq) + 2 OH-(aq) -----> Ca(OH)2 (s) + 2 Na+1(aq) + 2 NO3-1(aq)
Net ionic equation is:
Ca2+(aq) + 2OH-(aq) Ca(OH)2(s)
With Na2S
Ca(NO3)2 (aq) + Na2S (aq) ------> CaS (s) + 2NaNO3 (aq)
Total Ionic :
Ca+2(aq) + 2 NO3-1(aq) + 2 Na+1(aq) + S-2(aq) -----> CaS (s) + 2 Na+1(aq) + 2 NO3-1(aq)
Net ionic equation is:
Ca2+(aq) + S-2(aq) ------> CaS (s)
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