D.
Energy cannot be created nor destroyed. It is just transferred through sound, heat and light.
Answer:
125cm^3
Explanation:
A cube has a side that is 5cm long, and a cube has all even sides. To determine the volume, you need to multiply the length, width, and height. Because all these numbers are 5, you do 5*5*5, or 5^3 power, which is 125
Try to understand all the rules and laws like:
Aufbau Principle
Hund's rule
Pauli exclusion principle...
Then, you should understand the way in which you can fill the electrons in the orbitals!!
