Vertiendo agua sobre carburo de aluminio se obtienen metano e hidróxido de aluminio. Calcula el volumen de metano, en condiciones normales que se puede obtener suponiendo un rendimiento del 82% a partir de 150 gramos de carburo de aluminio puros

i have no clue hope you find the answer

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

a is the correct answer