Question

covalent bonding occurs between two oxygen atoms to form o₂. whats the partial charge on each oxygen atom in o₂?
a) both oxygen atoms have positive partial charge.
b) both oxygen atoms have negative partial charge.
c) one oxygen atom has positive partial charge, and the other has negative partial charge.
d) both oxygen atoms have zero partial charge.
question 15 (5 points)
the overall process of photosynthesis has the balanced chemical equation 6co₂ + 6h₂o → c₆h₁₂o₆ + 6o₂. what does this tell you about the relative amounts of carbon dioxide and water consumed in this process?
a) for every six grams of carbon dioxide consumed, one gram of water is consumed.
b) for every six moles of carbon dioxide consumed, one mole of water is consumed.

Explanation:

• In \(O_2\), since both oxygen atoms are identical, they have the same electronegativity. So, the electrons in the covalent bond are shared equally, resulting in no partial charges.
• For the photosynthesis equation \(6CO_2 + 6H_2O

ightarrow C_6H_{12}O_6+6O_2\), the coefficients in a balanced chemical equation represent the mole ratios. Here, the coefficient of \(CO_2\) is 6 and the coefficient of \(H_2O\) is 6, meaning for every 6 moles of \(CO_2\) consumed, 6 moles of \(H_2O\) are consumed.

Answer:

• First question: D. Both oxygen atoms have zero partial charge.
• Second question: (Since the options provided for the second question are incomplete in the user - given text, but based on the equation, the correct mole ratio is 1:1 for \(CO_2\) and \(H_2O\) in terms of moles. If we assume the full option set, the correct answer regarding mole - ratio would be based on the balanced equation's coefficients).