How many grams of methane (CH4) are in a 1.0 liter can of methane at 25oC and 250 psi?

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Identify two types of chemical bonding in the source of dietary potassium