A mixture of containing 0.25 mole Xe, 1.50 mole Kr, & 1.25 mole Ar has a pressure of 3.67atm. What is the partial pressure of Ar?

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

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

The identities of substances are the same before and after which type of change