Which statement is accurate for these two sub-atomic particles.

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .