BRAINLIEST: A sample of crushed rock is found to have 4.81 x 10^21 atoms of gold, how many moles of gold are present in this sample?

Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

1) this is the structure in the cell nucleus that houses a cell's genetic information