Calculate the mass of scheelite (CaWO4)
that contains a trillion 1.00(10^12) oxygen atoms.

Be sure your answer has a unit symbol if necessary, and round it to
significant digits.

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.

the answer is a and have a great day