What kind of material is found in the c horizon of a soil profile? mineral and organic matter clay particles hardpan partially weathered parent material

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Gravitational potential energy is related to