63. Sewage sludge is applied as a fertilizer to agricultural land. The heavy metal cadmium, Cd, is often found in small amounts within this fertilizer. How many moles of cadmium is 2.62 × 1023 atoms of cadmium?

A 0.262 mol Cd

B 0.435 mol Cd

C 3.4 × 1023 mol Cd

D 6.02 × 1023 mol Cd

B

Explanation:

In the attached file

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).