Answer: Cell
Explanation: The cell is the most basic unit of life.
IT will be easy to know how chemical reactions occur
It will helps to know the fundamental particles of an atom
Answer:
Explanation:
2Al₂O₃ ⟶ 4Al +3O₂
n/mol: 1.26
The molar ratio is 4 mol Al:2 mol Al₂O₃.
Answer:
A
Explanation:
B and D have to do with plants
and C has nothing to do with cellular resporation.
Answer:
The valence shell (the 3s and 3p sublevels) contains six electrons, but it needs eight to become stable. Think of the octet rule. Therefore a sulfur atom will gain two electrons to form the sulfide anion with a charge of 2− , with the symbol S2− .