what is the relationship between the dipole moment and bond moment? explain it with examples ,how it possible for a molecule to have bond moment and yet be nonpolar?

Explained below

Explanation:

The relationship between dipole moment and bind moment is that Dipole moment of a molecule is defined as the resultant of all the bond moments and moments that are due to any existing lone pair.

For example, If a covalent bond is formed between two different elements that have different electronegativity, it means that the bond will become polar. Now, thee shared electron pair existing in the covalent bond gets more attracted to the more electronegative atom. As a result of that, the negative pole will now develop on that atom and thereby making positive pole to develop on the other atom.

If a molecule has a symmetrical shape and as a result all of its bond moments are equal, it means that the molecule will be non-polar. Examples that exhibit this are: CO2, CH4, BF3, etc.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

compass can be used day and night, cloudy or sunny