I need the chemical formula with phases , the net ionic equation with phases , a
ID: 792072 • Letter: I
Question
I need the chemical formula with phases, the net ionic equation with phases, and the name of the precipitate, gas or what is formed, if there is none just write no reaction.
1. Cobalt (II) nitrate and Sodium Iodide
2. Cobalt (II) nitrate and Sodium Bicarbonate
3. Copper (II) Nitrate and Sodium Chloride
Cu(NO3)2 (aq) + 2NaCl (aq) = CuCl2 (aq) + 2NaNO3 (aq),
No reaction?
4. Copper (II) Nitrate and Sodium Bicarbonate
5. Copper (II) Nitrate and Sodium Carbonate
Na2NO3 (aq) + Cu(NO3)2 (aq) = 2NaNO3 (aq) + CuCO3 (s)
Copper carbonate?
Explanation / Answer
1.Co(No3)2(aq) + 2 NaOH(aq) --> 2 NaNo3(aq) + Co(OH)2(s)
This is also a precipitation reaction because cobalt 2 hydroxide is insoluble.
2.NO REACTION
3.the reaction occurs. The reaction does not depend on the charges of the ions.
Both of them are salts, so they would react. First, you write the formulas for both of them:
Copper (II) nitrate - Cu(NO3)2
Sodium chloride - NaCl
And then you write the equation by switching the ions:
Cu(NO3)2 + NaCl -> CuCl2 + NaNO3
And now you make the right changes:
Cu(NO3)2 + 2NaCl -> CuCl2 + 2NaNO3.
4. NO REACTION
5.A blue precipitate of copper (II) carbonate forms in addition to one other compound. Cu(NO3)2 + Na2CO3 -> CuCO3 + 2 NaNO3
The other compound is the NaNO3, which is called Sodium Nitrate