If you place 20 grams of helium at room temperature into a closed container that holds 500 mL, and then...

If you place 20 grams of helium at room temperature into a closed container that holds 500 mL, and then later transfer the helium into a 1000 mL closed container, which of the gas' properties will change? Select answer A weight Select answer B viscosity Select answer C mass Select answer D density