Magnesium carbonate and hydrochloric acid react to produce salt, water and carbon dioxide.
MgCO3 + 2 HCl → MgCl2 + H2O + CO2
+
What is the volume of CO2 produced when 21 g of magnesium carbonate reacts
completely with excess hydrochloric acid?

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

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