An automobile gasoline tank holds 25.0 gal when full. How many pounds of gasoline will it hold if the gasoline has a density of 0.737 g/mL ?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

What is the value of the standard enthalpy of formation of an element in its most stable form?