4) What volume will a 200.0 mL sample of a gas at STP occupy when the pressure is doubled at constant temperature?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

What produces wave a)sound b) heats c)transfer of energy d)vibrations

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)