Question

The electronegativity values of carbon, hydrogen, and nitrogen are compared in the table. Comparison of Electronegativity Element Electronegativity Carbon 2.5 Hydrogen 2.1 Nitrogen 3.0 Which of the following statements is true about the strength of the intermolecular forces in CH4 and NH3? (4 points) CH4 ≥ NH3 because CH4 is tetrahedral but NH3 is pyramidal. CH4 < NH3 because δ− on C in the CH bond is greater than δ− on N in the NH bond. CH4 < NH3 because the NH bond is more polar than the CH bond. CH4 ≥ NH3 because CH4 has H bonding but NH3 has dispersion forces.

Answer 1

The layer of soil which is just below the top-soil is called B-horizon. It is also known as sub-soil. The sub-soil is made up of slightly bigger rock particles than that of top-soil. ... The sub-soil has very little humus (decayed organic matter).