Which of the following offers the best supporting evidence for polarity in covalent bonded molecules

differences in ph compound

difference in ionization energy between electrons

difference in atomic mass between atoms

difference in electronegativity between elements

Difference in electronegativity between elements

Explanation:

Electronegativity is the power of an atom to attract an electron to itself. It is used to predict whether a bond between atoms will be IONIC or COVALENT, AND can also be used to predict if the resulting molecule will be POLAR or NONPOLAR.

A Slight difference in the electronegativity of elements explains the best supporting evidence for polarity in covalent bonded molecules.

A good example is WATER MOLECULE (H2O). Oxygen has 3.44, while Hydrogen has 2.20

So, the electrons are unequally shared, with the oxygen atom having more electron density than the hydrogen atoms. Thus, it carries a partial negative charge.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

it means there are 3 atoms of oxygen