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Both alkenes and alkanes are chains of carbon and hydrogen molecules. The chains can be different lengths and each length chain has a different name. 

An alkene is a chain which has a double bond b...

There are two different verbs meaning 'to be' in Spanish- ser and estar. They are used for different things. 

The uses for ser can be remembered using the acronym 'Doctor':

Date, Occupation,...

Exercise has both long term and short term effects on the body. 

Short term effects include increased heart rate, increased cardiac output (volume of blood pumped out by the heart each minute, incr...

The kidney consists of a huge number of functional units called nephrons. Each nephron has multiple sub-structures within it that relate to the kidney's overall function. Glomerulus - A dense network of c...

The historical context of 'Of Mice and Men' centres around the United States of America during the years of the 'Great Depression.' The depression ignited with the Wall Street Crash on the 29th of October...