Answer:
1. Chemical, Radiant, Heat
2. Mass, Speed, Heat
3. Mechanical, Heat, Chemical
4. Heat, Electrical, Radiant
Depending on whether or not you can only use the choices at the top.
Explanation:
1. Chemical, Radiant, Thermal
2.Mechanical, Elastic, Thermal
3. Chemical, Mechanical
4. Radiant, Electrical, Thermal
Mechanical energy because of the mixing and mashing of the teeth. https://www.solarschools.net/knowledge-bank/energy/types (check this website because I'm not sure if I'm right yet).
Answer:
6 Li(s) + N₂(g) → 2 Li₃N(s)
Explanation:
Solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product (lithium nitride). The chemical equation is:
Li(s) + N₂(g) → Li₃N(s)
Since the atomicities in the product are odd, the easiest way to balance the equation is by first multiplying it by 2.
Li(s) + N₂(g) → 2 Li₃N(s)
The final (balanced) equation is:
6 Li(s) + N₂(g) → 2 Li₃N(s)
You can tell that the atom is in the excited state because:
- Electron configuration should follow the 2-8-8-2 rule, meaning that the inner shell should be filled before the next shell can start holding electrons.
- Instead of the atom's electron configuration being in the ground state at 2-8-8-1, electrons from the second shell have jumped to the third.
