The structural formula of a chemical compound is a <u>graphic representation of the molecular structure</u>, which shows how atoms are arranged or spatially distributed. The chemical bonds within the molecule are shown, either explicitly or implicitly.
The cis / trans isomers are compounds that<u> differ in the spatial arrangement of their groups</u>. Particularly, the<u> cis isomers are geometric isomers that have the groups on the same side while the trans isomers are those that have them on opposite sides.
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On the other hand, structural isomers are molecules with the<u> same molecular formula but different structure</u>.
The possible structural isomers of n-hexene that can be formed by moving the position of the double bond are shown in the picture attached, considering only the cis isomers.
The balanced reaction that describes the reaction between lithium and nitrogen to produce lithium nitride is expressed N2 + 6Li = 2Li3N. Hence for 12 moles of lithium given, there are 4 moles of lithium nitride produced. Answer to this problem is 4 moles.
Any substance that is not a mixture is a pure substance. When colored watercolors are applied to paper, sometimes the colors in the ink separate. This technique is called chromatography