As we know that
Polarity exists due to presence of charges. And charges are generated in molecules due to
Electronegativity differences. The element with higher electronegativity will have
partial negative charge, while element with less electronegativity will have
partial positive charge. This partial positive and partial negative charge on a molecule makes it
polar.
Polarity mainly depends upon the
shape of a molecule. For example, In
water Oxygen being more electronegative is partial negative and Hydrogen being less electronegative is partial positive. It is polar and has a
bent structure. It means the two bond moments are not cancelling each other hence the water molecule has a net dipole moment of
1.84 D.
Secondly,
CO₂ (Carbon dioxide) also has a more electronegative Oxygen atom and less electronegative Carbon atom. In this case the net dipole moment on CO₂ is
zero. This is because the structure of CO₂ is
linear. As the two dipoles being equal and opposite
cancel out the effect of each other making the CO₂ molecule
non-polar.
Answer:
We will Multiply the number of moles with Avagadro's number
So it will be (2.04×1023)×6.022×10^23
<h3>or 2.04×1023 NA</h3>
NA means Avagadro's number
Answer:
0 for the elemental form, +2 in its compounds.
Answer: (c) a gold brick would have the least amount of inertia.
The inertia of an object refers to its ability to continue in its present state of rest or uniform motion until any external force act of the body to change its state of motion.
The inertia of a body increases with its mass. For this reason, a body with more mass and high inertia needs larger force to change its state of motion or rest. Among the given objects, the mass of a gold brick is the least. For this reason, it would have the least amount of inertia and least amount of force is required to change its state of motion or rest.