What elements are found in a 9 volt battery

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

What are the variables in gay-lussac’s law? pressure and volume pressure, temperature, and volume pressure and temperature volume, temperature, and moles of gas

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?