Answer:
Speed is measured over time.
Explanation:
Answer:

Explanation:
The formula for tin(IV) sulfide is SnS
Answer:
so they can find the aswer and not get hurt
Explanation:
Answer:
The particles begin to vibrate faster and more.
Explanation:
Adding heat to matter increases the energy, thus creating more movement. Eventually, the bucket will melt, turning to a liquid. While it is a sold, it still has particle movement, just not enough to break volume or shape.
You can see a physical change always but not always a chemical