Teacher of Chemistry, Physics and Biology
If 123 mL of a 1.1 M glucose solution is diluted to 500.0 mL, what is the molarity of the diluted solution?
Use aluminum as an example to explain how density is a periodic property.
Who is credited with arranging the periodic table? How are elements arranged in this table?
The periodic table is a result of the periodic law. What observations led to the periodic law? What theory explains the underlying reasons for the periodic law?
What is Coulomb"s law? Explain how the potential energy of two charged particles depends on the distance between the charged particles and on the magnitude and sign of their charges.
What is penetration? How does the penetration of an orbital into the region occupied by core electrons affect the energy of an electron in that orbital?