Question

what is the key difference?
electrons are shared equally between atoms in the products but not in the food.
there are more electrons in each covalent bond in food compared to the products.
electrons are held more tightly by nuclei in the products of processing than they are in the food.
recall what you learned about polar and nonpolar bonds. why does oxygen (o) hold electrons so tightly in c - o and o - h bonds?
it has very high bond polarity.
oxygen is a larger atom than carbon (c) or hydrogen (h).
it has extremely high electronegativity.
compared to the electrons in nonpolar c - c and c - h bonds, do the electrons in c - o bonds have higher or lower potential energy?
higher
lower
neither - potential energy is potential only and doesnt change

Explanation:

• For the first question:
• In non - polar bonds (like \(C - H\)), electrons are shared more equally. In polar bonds (like \(C - O\) and \(O - H\) in the products), oxygen has a high electronegativity. Electrons in the products (with \(C - O\) and \(O - H\) bonds) are held more tightly by nuclei (due to oxygen's high electronegativity) compared to non - polar bonds in food (\(C - H\) etc.).
• For the second question:
• Electronegativity is the ability of an atom to attract electrons in a chemical bond. Oxygen has a very high electronegativity (much higher than carbon and hydrogen), which is why it holds electrons tightly in \(C - O\) and \(O - H\) bonds. Bond polarity is a result of electronegativity differences, and oxygen's size is not the main reason for holding electrons tightly in these bonds.
• For the third question:
• Electrons in bonds where they are more tightly held (like \(C - O\) due to oxygen's electronegativity) have lower potential energy. In non - polar \(C - C\) and \(C - H\) bonds, electrons are less tightly held (more "free" in a sense regarding potential energy) compared to \(C - O\) bonds.

Answer:

• First question: Electrons are held more tightly by nuclei in the products of processing than they are in the food.
• Second question: It has extremely high electronegativity.
• Third question: Lower.