How many moles are present in 29.4g of Aluminum (AI)? *

Part of molten rock at mid-ocean ridges

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

Compare and contrast physical changes with chemical changes.