Question

Balance this
CaCl2+Pb(NO3)2 ->

Answer 1

To balance the chemical equation for the reaction between calcium chloride (CaCl₂) and lead(II) nitrate (Pb(NO₃)₂), we need to first write the products of the reaction. When these two compounds react, they undergo a double displacement reaction, leading to the formation of lead(II) chloride (PbCl₂) and calcium nitrate (Ca(NO₃)₂). The unbalanced equation for the reaction can be written as:

\[ \text{CaCl}_2 + \text{Pb(NO}_3\text{)}_2 \rightarrow \text{PbCl}_2 + \text{Ca(NO}_3\text{)}_2 \]

Now let's balance the equation:

1. **Write the unbalanced equation:**
\[
\text{CaCl}_2 + \text{Pb(NO}_3\text{)}_2 \rightarrow \text{PbCl}_2 + \text{Ca(NO}_3\text{)}_2
\]

2. **Count the number of atoms for each element:**
- Reactants:
- Ca: 1
- Cl: 2
- Pb: 1
- N: 2
- O: 6
- Products:
- Ca: 1
- Cl: 2
- Pb: 1
- N: 2
- O: 6

3. **Everything is balanced as it stands.**

Thus, the balanced equation is:

\[
\text{CaCl}_2 + \text{Pb(NO}_3\text{)}_2 \rightarrow \text{PbCl}_2 + \text{Ca(NO}_3\text{)}_2
\]

The number of each type of atom is equal on both sides of the equation, confirming that it is balanced correctly.