The apple that isn't cut through and is fully there seems to last longer than a tiny piece of another apple. The apple seems to take more time to rot than half of an apple shown. And they both rot.

What type of change is This? Physical or chemical?

This is a chemical change because the process of rotting involves the decomposition of organic matter, resulting in the formation of new substances.

The change described here is a chemical change.

To determine whether the change you described is physical or chemical, we need to understand the difference between the two processes.

Physical changes involve altering the appearance or state of a substance without changing its chemical composition. Examples of physical changes include changes in shape, size, phase (such as solid to liquid), or state of matter (such as melting or freezing).

Chemical changes, on the other hand, involve the formation of new substances with different chemical properties. These changes typically involve the breaking and forming of chemical bonds. Examples of chemical changes include burning, rusting, decomposition, or fermentation.

In the case of the apple, when it is fully intact or cut into halves, the changes you observe are primarily physical. The apple's appearance may change over time as it starts to rot, but this does not involve the formation of new substances or a substantial chemical transformation. It is more likely a result of physical processes such as moisture loss, bacterial or fungal growth, and enzymatic breakdown.

However, when the apple starts rotting, there is a gradual chemical breakdown of its tissues caused by enzymatic reactions and the growth of microorganisms. This decomposition process leads to the formation of new substances and the release of unpleasant odors, indicating a chemical change.

Therefore, while the initial observations of the apple appearing to last longer when intact compared to a smaller piece can be attributed to physical changes, the overall process of rotting involves a combination of physical and chemical changes.