An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
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Sudan changes to deep orange or red in the presence of lipids. Sudan in not soluble in water lipids will absorb sudan's particle that will cause the change in color. Lipids will form distinct fat layer in the solution. This can be done during experiment where a macromolecule is unknown. Application of this experiment applies in health such as during confirmation of excessive fat in stool. The affinity of this dye to the lipids is high and alcoholic solutions of sudan dye can also be used.
<span>Basically, it is fossilized coral that - for what we know - dates back to about 350 million years ago. The Petoskey Stone is known to develop in warm seas near the equator (since it is coral it forms in seas). This fits the location is close to the equator. Since this moved, it shows the power of Plate Tectonics. Plate Tectonics is related to the Theory of the Continental Drift.</span>
It was closely linked to the natural world
