Which subatomic particle has virtually no mass but accounts for the volume of the atom?

10.222 g sample of hydrated barium iodide (Bal) is heated to dry off the water of crystallization. The dry sample has a mass of 9.520 g. What is the formula of the hydrate

Use the helium-4 isotope to define atomic number and mass number. why does knowledge of atomic number enable us to deduce the number of electrons present in an atom

On what bases are solids, liquids, and gases differentiated?

What is the color of litmus solution in sodium hydroxide?

Which phrase describes air density? increases as altitude increases equals mass divided by volume pushes molecules in one direction exerts less pressure as it increases

If, at a given temperature, the equilibrium constant for the reaction H2 (g) Cl2 (g) 2HCl (g) is Kp, then the equilibrium constant for the reaction HCl (g) (1/2) H2 (g) (1/2) Cl2 (g) can be represented as:

The tank of an air compressor contains gas at normal atmospheric pressure (1atm). If the compressor motor pumps the equivalent of three extra tanks of air into the compressor tank, what will be the final pressure

Which atom has the largest number of neutrons? phosphorus-30 chlorine-37 potassium-39 argon-40 calcium-40?

A certain indicator has a color chart that shows that when the indicator is yellow, the solution is acidic. What is true about a solution that produces a yellow indicator?

The element hydrogen adom is made up of wich kinds of adams