# Complete and balance the equation for the following single-replacement reactions. (Use the lowest possible coefficients. Omit states-of-matter from your answer.)

Ni + Cu(NO3)2(aq)-->

## To complete and balance the equation for the single-replacement reaction between Ni and Cu(NO3)2, follow these steps:

1. Write down the unbalanced equation:
Ni + Cu(NO3)2 → ??

2. Identify the metal that is more reactive (higher on the activity series) than the other metal present. In this case, nickel (Ni) is more reactive than copper (Cu).

3. Write the balanced equation by swapping the metals and their charges:
Ni + Cu(NO3)2 → Ni(NO3)2 + Cu

4. Finally, balance the equation by ensuring that the number of atoms on both sides of the equation is equal:
Ni + Cu(NO3)2 → Ni(NO3)2 + Cu

The balanced equation for the single-replacement reaction between Ni and Cu(NO3)2 is:
Ni + Cu(NO3)2 → Ni(NO3)2 + Cu

## To complete and balance the equation for the single-replacement reaction between nickel (Ni) and copper(II) nitrate (Cu(NO3)2), we need to follow a set of steps:

Step 1: Determine the products
In a single-replacement reaction, the more reactive metal replaces the less reactive metal in a compound. In this case, nickel (Ni) is more reactive than copper (Cu). So, nickel (Ni) will replace copper (Cu) in copper(II) nitrate (Cu(NO3)2). The products of this reaction will be nickel(II) nitrate (Ni(NO3)2) and copper (Cu).

Step 2: Write the unbalanced equation
Based on the reactants and products, we can write the unbalanced equation as follows:
Ni + Cu(NO3)2 → Ni(NO3)2 + Cu

Step 3: Balance the equation
To balance the equation, we need to make sure that the number of atoms of each element is the same on both sides.

Balancing the nickel (Ni) atoms:
There is one nickel (Ni) atom on the left side and one nickel (Ni) atom on the right side. So, nickel (Ni) is already balanced.

Balancing the copper (Cu) atoms:
There is one copper (Cu) atom on the left side and one copper (Cu) atom on the right side. So, copper (Cu) is already balanced.

Balancing the nitrate (NO3) ions:
There are two nitrate (NO3) ions on the left side and two nitrate (NO3) ions on the right side. So, nitrate (NO3) ions are already balanced.

The final balanced equation is:

Ni + Cu(NO3)2 → Ni(NO3)2 + Cu