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The imperfect tense is used to talk about the past. There are several uses which include: -I used to (+ verb) to show habits/routines in the past e.g. I used to go swimming 3 times a week e.g. I used to h...

To be able to answer this essay it is necessary to first analyse the question and the key details in it. First of all, Alexander II is the key figure in this question and so his reign and the context surr...

a) 2.8.7 (A chlorine atom has 17 protons and therefore 17 electrons. The first shell holds 2 electrons, and those after hold 8 electrons)
b) Chlorine exists as a diatomic molecule at room temperatur...

In “Porphyria’s Lover” Browning uses language to show how obsession can lead to the desire to possess another to the extent that ultimately, the speaker kills Porphyria. Upon deciding to murder Porphyria,...

Balancing chemical equations requires the same quantity of products as reactancts. There are two atoms of H on the left and therefore two on the left; one SO4 on the left thus one on the right; however wh...