Which is a sign of a chemical change?

A) Ice cream left at room temperature melts.
B) Calcium chloride is dissolved in H2O and disappears.
C) Paint on a freshly painted wall dries and is no longer sticky.
D)When H2S gas is bubbled into a lead acetate solution, a precipitate forms.

Respuesta :

The correct answer for the question it is option  

>>>>D<<<<

%100 sure 

if you need another answer welcome to come