If one assumes that a penny is a simple cylinder with a diameter of 19.0 mm and a height of 1.5 mm, what is the approximate thickness of copper on the penny (the density of copper is 8.93 g/mL):

The modern periodic table has groups.

What is the name of this hydrocarbon?

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic