<h2><u><em>D:Water enters an aquifer throught infitation </em></u></h2>
Answer:
0.89 moles of N2 gas
Explanation:
From Avogadro's law:
V1/n1 = V2/n2
n2 = V2n1/V1
V1=11.2L
V2= 20L
n1=0.5 moles
n2 = ??
Therefore
n2= 20×0.5/11.2= 0.89 moles
Should be less than 4 mg/kg/min
The number of protons is equal to the atomic number and the number of electrons is the same, because it has to cancel that charge of the protons
So, the number do electrons and protons is 20.
The number of neutrons is equal to the (mass number - atomic number).
So, 40.08 - 20 ~ 20 neutrons
Answer:
Creo que es D pero no tan segura
Explanation: