He called me a lair.(into direct speech)

When undergoing chemical reactions where does the reactant combine to the enzyme?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)