COMPLETION AND BALANCING OF EQUATIONS

Complete and balance the following equations:
1. ZnCl2 + AgNO3

To complete and balance the equation ZnCl2 + AgNO3 → ____, we need to determine the products of the reaction.

First, we identify the cations and anions in the reactants:
- ZnCl2 contains the cation Zn2+ and the anion Cl-.
- AgNO3 contains the cation Ag+ and the anion NO3-.

In a chemical reaction, the cations and anions can combine to form new compounds. In this case, the Zn2+ cation can react with the NO3- anion, and the Ag+ cation can react with the Cl- anion.

The reaction can be written as follows:
ZnCl2 + AgNO3 → AgCl + Zn(NO3)2

To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Let's start with balancing the number of atoms of each element on each side:
On the left-hand side, we have:
1 Zn atom
2 Cl atoms
1 Ag atom
1 N atom
3 O atoms

On the right-hand side, we have:
1 Ag atom
1 Cl atom
1 Zn atom
2 N atoms
6 O atoms

To balance the number of atoms, we can start by adjusting the coefficients of the compounds:
ZnCl2 + 2AgNO3 → 2AgCl + Zn(NO3)2

Now, let's check if the equation is balanced by counting the atoms again:
On the left-hand side, we have:
1 Zn atom
2 Cl atoms
2 Ag atoms
2 N atoms
6 O atoms

On the right-hand side, we have:
2 Ag atoms
2 Cl atoms
1 Zn atom
2 N atoms
6 O atoms

Now, the equation is balanced, with the same number of atoms on each side.

Therefore, the completed and balanced equation is:
ZnCl2 + 2AgNO3 → 2AgCl + Zn(NO3)2