To use the gas law constant R = 0.0821, the unit for temperature should be Kelvin and the unit for pressure should be atmospheres.

True or False?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

One does not belong why? ice, gold ,wood ,diamond and table salt

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