How could you make the reaction Cu(NO3)2 + NaCO3 -- CuCo3+NaNO3 balanced?

You have the formula for sodium carbonate wrong> Na2CO3

The carbonate ion is -2 valence, and Na is +1. Now it will balance.

To balance the chemical equation Cu(NO3)2 + NaCO3 --> CuCO3 + NaNO3, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Let's break down the equation step by step:

1. Start by counting the number of each type of atom on each side of the equation:

On the left side:
- Copper (Cu): 1 atom
- Nitrogen (N): 2 atoms
- Oxygen (O): 6 atoms
- Sodium (Na): 1 atom
- Carbon (C): 1 atom

On the right side:
- Copper (Cu): 1 atom
- Carbon (C): 1 atom
- Nitrogen (N): 2 atoms
- Oxygen (O): 6 atoms
- Sodium (Na): 1 atom

2. Begin by balancing the atoms that occur in only one compound on each side of the equation. In this case, we'll start with copper (Cu):

On the left side: 1 Cu atom
On the right side: 1 Cu atom

The copper atoms are already balanced.

3. Next, balance the other atoms in the equation, one element at a time. We'll start with nitrogen (N):

On the left side: 2 N atoms
On the right side: 2 N atoms

The nitrogen atoms are already balanced.

4. Now, let's balance the carbon (C) atoms:

On the left side: 1 C atom
On the right side: 1 C atom

The carbon atoms are already balanced.

5. Next, balance the oxygen (O) atoms:

On the left side: 6 O atoms
On the right side: 6 O atoms

The oxygen atoms are already balanced.

6. Finally, balance the sodium (Na) atoms:

On the left side: 1 Na atom
On the right side: 1 Na atom

The sodium atoms are already balanced.

Therefore, the balanced equation is:

Cu(NO3)2 + Na2CO3 --> CuCO3 + 2NaNO3