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? A. 7.99 x 10^-3 moles
B. 1.57 x 10^-1 moles
C. 1.25 x 10^3 moles
D. 2.47 x 10^5 moles

la respuesta es si te gusta hacer lo que siempre haces cuando nunca ves a alguien en el espejo porque sabes que no siempre están ahí.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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the dependant variable is spilled water

the independent is the heat