Question

which can occur in a physical change?
the mass can increase.
the particles can arrange in different ways.
the mass can decrease.
the atoms can bond to different atoms.

Explanation:

In a physical change, the substance's chemical composition remains the same. Mass is conserved in a physical change, so it doesn't increase or decrease. Also, no new chemical bonds are formed between atoms. However, the particles can change their arrangement, like in a phase - change (e.g., ice melting to water, where water molecules change from a fixed, ordered arrangement in ice to a more random arrangement in liquid water).

Answer:

The particles can arrange in different ways.