Potassium-40 has a half-life of 1.277 mc013-1.jpg 109 years. after 1.022 mc013-2.jpg1010 years, how much potassium-40 will remain from a 500.3-g sample? approximately 1.95 g approximately 3.91 g approximately 62.54 g approximately 71.47 g

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

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