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In order for a reaction to take place molecules must collide with enough energy, which is known as the activation energy. Therefore when you heat a reaction mixture the heat energy is converted into the k...

Hitler used a combination of methods to achieve power, and this essay is asking you to explore these. I would structure this essay based on three main methods: Hitler’s use of the past and ideology, his u...

The long term significance of the war helped women to gain employment opportunities when the Sex Disqualifications Act was passed in 1919 which gave rights to women to enter professions like jurors, magis...

The cardiac cycle is the continual sequence of contraction and relaxation of the atria and ventricles to keep blood continually circulating around the body.

First the atria contract decreasing thei...

Arteries carry blood away from the heart to the rest of the body and veins then take blood back to the heart. Because the heart directly pumps blood into the arteries by its forceful contractions, arterie...