Answer:
atomic number of Be =4
electronic configuration :1s²2s²
but for Be2+ atomic number = 4-2 =2
electronic configuration : 1s²
Force = Mass * Acceleration = 59 kg * 9.75 m/s^2 = 575.25 N
Answer:
crushing an ice cube
Explanation:
crushing an ice cube can be redone by freezing it again in its position
Answer:
Explanation:
the chemical equilibrium constant can be easily calculated since the concentrations at equilibrium are given.the calculation shows the value of Kc for the reversible reaction and forward reaction
Answer:
D.
Explanation:
The rock that is left behind is there because it has resisted the forces of erosion.