Identify the balanced single displacement reaction. cucl2 + fe ⟶ 2cu + feci2 pbcl4 + 2ca(oh)2 ⟶ 2cacl2 + pb(oh)4 cucl2 + fe ⟶ cu + feci2 pbcl4 + 2ca(oh)2 ⟶ 2cacl2 + 4pb(oh)

Explanation:

This is a single replacement reaction in which iron replaces copper from its salt solution. As iron is more reactive than copper , it easily loses electrons to convert to in and in accepts electrons to form .

The equation is also balanced as equal number of atoms of each element are present on reactant and product side.

1. : The equation is not balanced.

2. : This is a double displacement reaction and is balanced.

4.  : This is a double displacement reaction and is not balanced.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter