Can single atoms be seen with a powerful light microscpe

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

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

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer