The mass of 1 mole of an element in grams) is the same as which quantity?
O
A. The atomic mass of the element times Avogadro's number
O
B. The atomic mass of the element in atomic mass units
O
c. The atomic number of the element
O
D. The atomic number of the element times Avogadro's number

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

Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.

The energy that powers a hurricane is derived from