The number of molecules of carbon(iv)oxide produced when 10.0g of Caco, is treated with 0.2dm of IM HCI in the equation Caco, + 2HCl => CaCl, + H2O + CO, is
A. 1.00 x 1023

B. 6.02 x 1023

C. 6.02 x 1022

D. 6.02 x 1024

(Ca = 40.0, O = 16, C = 12, H = 1, Cl = 35.5)

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The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.