Hydrochloric acid, magnesium metal and universal indicator solution are added to a beaker.
Observations were made: A gas was produced, the beaker got hot, the metal dissolved and the color
changed from red (highly acidic) to yellow (slightly acidic). Based on these observation, what do you think happened, and what was responsible for each different observation.

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.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".