Which statement best describes the difference between a physical change and a chemical change?
1. A chemical change results in a new element being formed, and a physical change results in a new compound being formed.
2. A physical change produces a new element, and a chemical change results in a bond breaking between atoms.
3. A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.
4. A chemical change does not result in a new substance being formed, whereas a physical change does.
In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.
