Question

Which of the following is a true statement? Physical property change is always better than chemical property change.

o Physical and chemical propery change can happen at the same time.
Chemical property change is better than physical property change.​

Answer 1

the second one

Step-by-step explanation:

Sometimes it can be tricky to know whether or not a chemical reaction has occurred. For example, when you melt ice into water, you can write the process in terms of a chemical reaction. However, the chemical formula on both sides of the reaction is the same. Since the chemical identity of the matter in question is unchanged, this process represents a physical change.

Thus melting point is a physical property. On the other hand, flammability is a chemical property of matter because the only way to know how readily a substance ignites is to burn it. In the chemical reaction for combustion, the reactants and products are different.

none are better, depending on for what