Which is the limiting reactant? acetylene (C2H2) oxygen (O2)

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

What is a difference between a mixture of elements and a mixture of compounds

Which type of intermolecular force is pbr3