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Start by identifying the atoms that are going to be bonded to each other, for example, two hydrogen atoms, and then work out how many electrons are in the outer shell of those atoms. Hydrogen only has one...

The first step is the draw out the molecules in question to understand what is happening in the reaction. You can see that the bromine atom has been substituted for an alcohol group (OH) in the enthane mo...

Entropy is the level of disorder in the universe. The more disordered something is, the higher its entropy. Molecules in solids ae specifically arranged and vibrating, hence the level of disorder is low, ...