Question

the weight of sodium chloride after dissolution in water will decrease from its original weight taken prior to dissolution. true false

Explanation:

When sodium chloride dissolves in water, it undergoes a physical change. According to the law of conservation of mass, mass is neither created nor destroyed in a physical change. The sodium chloride still exists in the solution as \(Na^{+}\) and \(Cl^{-}\) ions. The total mass of sodium chloride remains the same as before dissolution.

Answer:

B. FALSE