This is because the electron configuration of Nitrogen is 2.5 while that of oxygen is 2.6. This is putting into perspective that the stable configuration for this period of elements is 2.8. Therefore Nitrogen would require 3 electron to reach stable configuration (2.8) while oxygen requires 2. This means that in sharing of electrons in covalent bonds, nitrogen will form three(3) bonds while oxygen will form two (2).
Answer:
index fossils are important for index fossils because
they use them to match up rock layers in certain locations
that may be far apart!
So I think it's C
Solution:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.
o According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
o The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.
Thus the required right answer is B.
<span>The three sources of signals related to the regulation of cell growth and division are :
</span><span>a) Other Cells
b) Other Organs
c) Environmental Conditions</span>
No, it is not precise. The law of energy conservation states that it is impossible to produce or destroy energy. Plants convert light energy from the Sun via the photosynthesis process into chemical energy.