Johnny left a glass of milk on his bedside table for a week, and it spoiled. At the end of the week, the glass contained a yellow liquid with lumpy white chunks, and there was a terrible odor. What can be concluded?
a) The milk has undergone a physical change.
b) The mass of the milk before the change is less than the mass of the milk after the change.
c) Milk only forms ionic bonds.
d) The milk has undergone a chemical change.
I think it is d
I think you are right.
yep, its D uwu
To determine the correct answer, let's analyze the situation.
Firstly, Johnny left a glass of milk on his bedside table for a week. Milk is a perishable product, meaning it can spoil or go bad if not refrigerated. Therefore, it is likely that the milk has undergone some kind of change over the course of a week.
Next, the description of the glass of milk at the end of the week provides some key information. The yellow liquid with lumpy white chunks and a terrible odor indicates a significant transformation has occurred. This goes beyond a simple physical change, such as evaporation or separation of substances, because there are distinct chemical changes in the composition of the milk.
Given this information, we can conclude that the most appropriate answer is d) The milk has undergone a chemical change.