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A hemiola is a feature of music that originated in the Baroque period. It comes about in music in triple time when the composer subverts the metre by placing the stresses of the music in different places, sp...

First ionisation energies decrease down groups in the Periodic Table:-larger atomic radius-increased nuclear charge is outweighted by increased shielding-reactivity increases down the group as it's easier to...

Both Cl and I in Group 7. Both have 7 electrons in its outer shell and require 1 electron to obtain a full shell. Reactivity of these halogens correspond to its ability to gain an electron. Cl can gain an el...

Many people worry about these type of exam questions however, if you follow a set way of approaching them, then they are much less daunting that you might think. Here are my top tips:1) Make you fully unders...

An easy way to remember the stages of mitosis is- preparation may achieve the impossible Prophase-preparationMetaphase-mayAnaphase-achieveTelophase-theInterphase-impossible. Prophaseis the first phase, where...