Given that the density of iron is 7.9 grams per centimeters cubed, what would be the volume of a 3.5 gram piece of iron?

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding

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

Is this correct if not can u correct me