One molecule of aqueous iron (II) chloride and one atom of zinc metal react to form one molecule of aqueous zinc (II) chloride solution and one atom of solid iron metal. Write the equation.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]