Answer:
1. absorb water,get rid of of waste products
2.chewing
3. absorbing nutrients
4. holding the food, breakdown of food
Answer:
Electrons in a hydrogen atom must be in one of the allowed energy levels. If an electron is in the first energy level, it must have exactly -13.6 eV of energy.
...
Energy Levels of Electrons.
Energy Level Energy
1 -13.6 eV
2 -3.4 eV
3 -1.51 eV
4 -.85 eV
The person above me is correct
MgCl2
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