When a Pair of Valence Shell Electrons Are Shared by Two

question 24

Multiple Choice

When a pair of valence shell electrons are shared by two atoms with significantly different electronegativity values, ________.

• A) a polar covalent bond forms
• B) the electron pair of the bond is positioned closer to the atom with the lower electronegativity
• C) an ionic bond forms
• D) the electronegativity values of the two atoms equalize

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Definitions:

Cardiac Output

The volume of blood the heart pumps through the circulatory system in one minute, a critical measure of heart function and efficiency.

Stroke Volume

The amount of blood the heart ejects with each beat, a key component in determining cardiac output.

Venous Return

Volume of blood returning to the heart.

Stroke Volume

The amount of blood ejected by the left ventricle of the heart in one contraction.