9) Two students are working together to build two models. Both models will represent the molecular structure of sodium bicarbonate, NaHCO3, commonly known as baking soda. The
students are using toothpicks to represent bonds and jelly beans to represent atoms. Red jelly
beans represent sodium atoms (Na), white jelly beans represent hydrogen atoms (H), black jelly
beans represent carbon atoms (C), and blue jelly beans represent oxygen atoms (O).
Identify the number of each color of jelly bean needed to make both models of NaHCO3.
Explain your reasoning.
Lo

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.