Question

two atoms bonded together will remain some distance apart, minimizing the
a) partial charge of the bond.
b) potential energy of the bond.
c) bond distance.
d) number of valence electrons in the bond.
question 4 (5 points)
listen
in a certain chemical reaction, 2 hydrogen chloride molecules in aqueous solution
react with solid zinc. the reaction produces zinc chloride in aqueous solution and
hydrogen gas. which of the following reaction equations correctly describes this
reaction?
a) hcl (aq) + 2zn (s) → 2zncl (aq) + h₂ (g)
b) 2hcl (aq) + zn (s) → zncl₂ (aq) + h₂ (g)

Explanation:

For the first question, atoms in a bond seek to minimize potential energy. Partial charge (A) is related to polarity, bond distance (C) is a result of energy minimization, and valence electrons (D) are involved in bonding but not what's minimized.
For the second question, balancing the chemical equation: 2 HCl (since 2 molecules), Zn (solid), ZnCl₂ (as zinc has +2 charge), and H₂. Option A has incorrect ZnCl formula (should be ZnCl₂) and wrong coefficient for Zn. Option B has correct coefficients and formulas.

Answer:

First question: B. potential energy of the bond.
Second question: B. 2HCl (aq) + Zn (s) → ZnCl₂ (aq) + H₂ (g)