I need help ASAP Bonus questions:
↑↓ ↑↓ ↑↑ ↑ ↑ Which rule is broken by this orbital filling diagram?
1s 2s 2p
a) Aufbau Principle b) Pauli Exclusion Principle
c) Hund’s Rule d) None of these

Which statement justifies that phosphine (ph3) is a polar molecule?

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

100mg magnesium reacts with 20ml of 1.0m hcl