En la molécula de agua (H2O) siempre existe una relación en masa de un 11,2 % de hidrógeno y un 88,8 % de oxígeno. ¿A qué ley hace referencia lo anterior? * A: A la ley de las proporciones definidas
B: A la ley de las proporciones múltiples
C: A la ley de la conservación de la masa
D: A la ley de las proporciones recíprocas
E: A la ley de los volúmenes de combinación

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

In 2002, the rare earth elements mine in mountain pass, california was closed because