10. When a substance is analyzed using an electron microscope, it is found to contain only one type of atom.
This substance is
A an element
B. a mixture
C. neither of the other three
D. a compound

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

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

How many miles of water are produced if 5.43 mol pbo2 are consumed