A thief uses a bag of sand to replace a gold statue that sits on a weight-sensitive, alarmed pedestal. The bag of sand and the statue have exactly the same volume, 1.95 L. (Assume that the mass of the bag is negligible.) densityofgold=19.3g/cm3;densityofsa nd=3.00g/cm3)

What are the first three quantum numbers for the electrons located in subshell 2s?

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

What is the source of continuous heat and energy that we receive from the sun