Is CO2 an atom or a molecule and is it a pure element or a
compound?

a. Atom, Compound
b. Molecule, Pure element
c. Molecule, Compound

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

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.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.