18. What coefficients can be used to balance the following equation? (2 points) K2CO3 + FeCl3 -> KCI + Fez (CO3)3
2, 2, 4, 1
O 3, 2, 6, 1
O 1, 1, 2,1
O 3, 3, 6, 1

Explanation:

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all eukaryotic cell have mitochondria : )

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).