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Which statement best explains the difference between the electron distributions of a bonding orbital (e.g., H2?) and an anti-bonding orbital (e.g., He2?)?
A) The electrons in the bonding orbital tend to be distributed between the two atoms. This is because of their tendency to be shared among the two nuclei.
B) The electrons in an anti-bonding orbital situation tend to be as far apart as possible. The involved nuclei repel each other.
C) In a bonding orbital situation, the electron distribution is between the nuclei, because both nuclei want to share the electrons. In an anti- bonding circumstance, the electron distribution is around each atom. There is a void between the nuclei and the nuclei repel each other.
D) Anti-bonding orbitals and bonding orbitals have similar distributions. The difference is in the overall electron density between atoms.
If you are given sodium acetate and asked to make a .5 M acetate buffer at pH 4.75, will you have to add acid, base, or nothing in order to achieve the proper pH? What is the approximate pH after adding the sodium acetate?
what is the empirical formula of a compound containing 16.6% by mass of silicon and 83.4% by mass of chlorine? if the molecular mass of the compound is 336g/mol what is the molecular formula.
Chemical Kinetics - Determine the time taken by a reactant to reach a particular concentration
energy to heat a certain sample of pure silver from 12.0 C to 18.2 C. Calculate the mass of the sample of silver.
Using bond-line formulas, draw 6 constitutional isomers that have 1) the molecular formula C5H10O, and 2) a three membered ring
(a) Can you suggest a reason that accounts for this unusual behavior? (b) Suggest an experiment with labeled compounds that would confirm this mode of attack.
why a bromine radical is more selective than a chlorine radical during abstraction of a hydrogen on a hydrocarbon?
The following reaction was carried out in a 2.50L reaction vessel at 1100 K: C(s)+H2O(g)?CO(g)+H2(g) If during the course of the reaction, the vessel is found to contain 5.25mol of C
Compute molar mass of ethanol after calculated molar mass in an experiment and the given molar mass of ethanol is 46.07g
a solution is made by dissolving 20.0 mL CH3CN. what is the mole fraction of methanol in the solution?
Which of the following hand tools would be classified as "chiral?" Ignore any writing that might normally appear on the tool
Calculate the pH of an aqueous solution prepared to contain 1.3 x 10^-3 M sodium nitrite (NaNO2) if the acid dissociation equilibrium constant, Ka, for nitrous acid (HNO2) is 5.1 x 10^-4.
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