1 mole is equal to how many liters (volume) of any gas?

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?