Answer:
A
Explanation:
Using the equation above, the dipole moment is calculated to be 1.85 D by multiplying the distance between the oxygen and hydrogen atoms by the charge difference between them and then finding the components of each that point in the direction of the net dipole moment (the angle of the molecule is 104.5˚).
Answer:
A. manganese change from +7 to +2
Explanation:
Reduction means a gain of electrons, which means the oxidation number will go down or the charge goes down basically or become more negative charge. On the left, Mn has +7 in MnO4-. On the right, it has 2+, so it has been reduced.
The electron configuration of an atom of Chlorine Cl (neutral
Chlorine) is:
1s2 2s2 2p6 3s2 3p5
Now if the Chlorine becomes an ion, it becomes Cl-. So we
can see that 1 electron is added therefore the new electron configuration is:
1s2 2s2 2p6 3s2 3p6
I believe the correct answer would be the second option. Scale models that show what a large object will look like are a visualization model. It is a physical representation of a certain object which has a consistent scale factor with the original object.
The structures in the human lungs where gas exchange occurs is at the alveoli. Tiny air filled sacs at the end of bronchioles.