Determine the equilibrium constant for the reaction hf(aq) + nh3(aq) (aq) + nh4 (aq) given the equilibrium constants for the following reactions. hf(aq) + h2o(1) f (aq) + h30(aq) nh3(aq) + h20( nh4(aq) + oh(aq) 2h20 oh(aq) + h30" (aq) a. 1.2 x 10-8 b. 3.8 1015 c. 1.2 * 106 d. 8.1 * 107 e. 1.0 * 1014 ka-5.6 x 10-10

What is the name of this hydrocarbon?

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025