MEDC basically means the country have education, good water supply,health care and high transportation. While LEDC means the county are very less education, but it doesnt mean they have no education. It means they have but less.
Ethane (/ËÉÎ¸eÉªn/ or /ËiËÎ¸eÉªn/) is an organic chemical compound with chemical formula C 2 H 6. At standard temperature and pressure, ethane is a colorless, odorless gas.Ethane is isolated on an industrial scale from natural gas, and as a byproduct of petroleum refining.Its chief use is as petrochemical feedstock for ethylene production.lthough ethane is a greenhouse gas, it is much less abundant than methane and also less efficient relative to mass. It has also been detected as a trace component in the atmospheres of all four giant planets, and in the atmosphere of Saturn 's moon Titan.
Figure 2: Conformations of ethane-staggered and eclipsed. The staggered conformation of ethane is a more stable, lower energy conformation than the eclipsed conformation because the eclipsed conformation involves unfavorable interactions between hydrogen atoms.Specifically, the negatively charged electrons in the bonds repel each other most when the bonds line up.n one case, the dihedral angle is 0Â° and the hydrogens on the first carbon line up with or eclipse the hydrogens on the second carbon. When the dihedral angle is 0Â° and the hydrogens line up perfectly, ethane has adopted the eclipsed conformation (Figure 2).