Question

1. according to the law of conservation of mass, how much mass does the zinc have in this equation?

a. 40 g
b. 88 g
c. 104 g
d. 256 g

Explanation:

Step1: Apply the law of conservation of mass

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. So, the total mass of reactants equals the total mass of products.
The mass of reactants is \(64\space g+ 192\space g\).
The mass of products is \(152\space g + x\space g\) (where \(x\) is the mass of zinc).
Set up the equation: \(64 + 192=152+x\).

Step2: Solve the equation for \(x\)

First, calculate the sum of the reactants: \(64+192 = 256\).
The equation becomes \(256=152 + x\).
Subtract \(152\) from both sides: \(x=256 - 152\).
\(x = 104\).

Answer:

C. \(104\space g\)