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A Stack is an abstract data type (ADT), this means its a concept rather than an implementation. I will explain the Stack ADT using the idea of a pile of plates. The pile is the Stack.

With a pile o...

By the VSEPR (Valence shell electron pairs repulsions) theory, even though there are four electron pairs on C and N, the presence of a lone pair of electrons on N increases the repulsions, meaning that th...

There are numerous ways to approach poetry. I would advise a student to start by chronologically making their way through, stanza by stanza, analysing language, imagery, metaphor. I would suggest that the...

You've probably included sentences for particular structures, or framed around good key phrase, so don't just mememroise like speech, remember why you've written that sentence Make arsenal of phrases that...

There are three types of intermolecular forces; 1. Van der Waal forces 2. Dipole-dipole forces 3. Hydrogen bonding Van der waals are the weakest and hydrogen bonding is the strongest. Van der Waal forces ...