Which of the following is not a physical change?

a. freezing ice
b. molding clay
c. filtering a mixture
d. cooking a steak

Easy bruh

D. Cooking a steak

Explanation:

You see, cooking a steak is a chemical change. When you cook a steak on a grill lets say, chemical reactions take place which are irreversible. In other words, you can melt ice, you can mold the clay bcak to its original form, you can make a mixture dirty again, but you can't make a cooked stake raw again.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.