Which statement is true about the electrons in each polar bond of a water molecule? they are more attracted by the oxygen atom than by the hydrogen atom. they are more attracted by the hydrogen atom than by the oxygen atom. they are equally attracted by the hydrogen and oxygen atoms. they are equally repelled by the hydrogen and oxygen atoms.

They are more attracted by the oxygen atom than by the hydrogen atom.

Explanation:

The bond between hydrogen and oxygen atoms in a water molecular is polar in nature. This is due to the differences in electronegativity of oxygen and hydrogen. Oxygen is much more electronegative than hydrogen.

The higher electronegativity of oxygen atom means that it attracts the electrons of the bond towards itself. Hence, the electrons of the bond between hydrogen and oxygen atoms in a water molecule are more attracted towards oxygen atom due to its higher electronegativity.

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

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