Answer:
candle.
Explanation:
Candle has more than one change chemical and physical.
Answer:
5 g/cm^3
Explanation:√3V=1.91293cm
I think that the sun is the center of the universe, not a human being. Everything revolves around the sun, not someone. U know when to sleep, when the time is, and when to wake up based on the sun. All the planets revolve around it. This is why I think the sun is the center of the universe, not a human being.

The reaction creates dihydrogen, hence if it's uncontrolled it could lead to potentially dangerous amounts of gas being released at once.
Answer:
changing shape under heat and pressuremelting completely, then cooling
Explanation: