Which of the following is a physical change?
A)Milk turning sour
B)Battery cables corroding
C)Sugar turning brown when heated
D)Liquid water being cooled and forming ice
E)An egg being hard-boiled

Question

Quizplus · Accepted Answer

The process of liquid water being cooled and forming ice is a physical change because it involves a change in state from liquid to solid without altering the chemical composition of water. Milk turning sour and battery cables corroding are chemical changes as they involve the formation of new substances with different properties. Sugar turning brown when heated is also a chemical change as it undergoes caramelization, a process that creates new compounds with distinct properties. The hard-boiling of an egg is a chemical change as the heat causes the proteins in the egg to denature and re-form into new compounds, resulting in a different texture and flavor.

Which of the Following Is a Physical Change