Find the value of c with the correct number of significant figures from the equation a - b - C = 401, if a = 1387.11 and b = 928.321.
57
57.789
57.8
57.9
58
58.789

What is the mass of 8 moles of sodium atoms

In a chemical reaction at equilibrium, the rate of the forward reaction the rate of the reverse reaction. if the rate of the forward reaction more products are formed.

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm