Question

What is the balanced equation for the reaction between zn(s) and pb(no3)2(aq)?

1) 2zn(s) + pb(no3)2(aq) → 2zn(no3)2(aq) + pb(s)
2) zn(s) + 2pb(no3)2(aq) → zn(no3)2(aq) + 2pb(s)
3) zn(s) + pb(no3)2(aq) → zn(no3)2(aq) + pb(s)
4) 2zn(s) + 2pb(no3)2(aq) → 2zn(no3)2(aq) + 2pb(s)

Answer 1

The balanced equation for the reaction between Zn(s) and Pb(NO₃)₂(aq) is 2Zn(s) + Pb(NO₃)₂(aq) → 2Zn(NO₃)₂(aq) + Pb(s). The correct option is 1.

Step-by-step explanation:

The balanced equation for the reaction between Zn(s) and Pb(NO₃)₂(aq) is:

2Zn(s) + Pb(NO₃)₂(aq) → 2Zn(NO₃)₂(aq) + Pb(s)

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

• 2 Zn atoms on the reactant side
• 1 Pb atom on the reactant side
• 2 NO₃ ions on the reactant side
• 2 Zn(NO₃)₂ ions on the product side
• 1 Pb atom on the product side

By balancing the equation, we make sure that the same number of each atom or ion is present on both sides, satisfying the law of conservation of mass.

Hence, Option 1 is correct.