What became of the encomiendas system after Bartolomeu de las casas reported it to Spain ?

Why does a red shoe appear red in daylight

Determine the reaction and balance the following equations urgent due in the morning

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.