6.02 x 1023 atoms of an element have a mass in grams equivalent to the mass of of the atoms in amu.
a) 1x 10-23
c) 6.02
d) 1 x 1023
b) 1

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.