Dispersal of matter and energy can be directly related to spontaneity if the: Select the correct answer below a. change in internal energy is positive
b. change in internal energy is negative
c. change in internal energy is zero
d. there are no conditions for this correlation

Easy definition for atom and atomic mass

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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