How do i find the mole of something?

The pressure of a neon gas sample at 25 °c decreases from 1.00 atm to 0.500 atm. what is the final celsius temperature if the volume remains constant?

Bonds between amino acids are what type of bonds? covalent peptide hydrogen ionic

Which will not appear in the equilibrium constant expression for the reaction below? Upper H subscript 2 upper o (g) plus upper C (s) double-headed arrow upper H subscript 2 (g) plus upper C upper O (g). [H2O] [C] [H2] [CO]

What is the electron configuration and the orbital notation for Hydrogen, Lithium, and Strontium?

The diagram shows a ball resting at the top of a hill. Which statement best describes the energy in this system

The atoms of gaseous helium are

The subatomic particle that has the least mass is the ...

Which two properties are used to define matter? has mass and conducts heat has buoyancy and volume has mass and takes up space conducts energy and has characteristic properties

Calculate the energy if 48.7 g of Al reacts in the following reaction. (Al = 26.98 g/mol) Fe2O3 (s) + 2 Al (s) →Al2O3 (s) + 2Fe (s) ∆Hrxn = - 852 kJ.

Which type of wave has a wave perpendicular to the disturbance? Surface Longitudinal Mechanical Tranverse