What mass of solute is contained in 256 mL of a 0.895 M ammonium chloride solution? Please answer quickly! thank you!

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?