Acandle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed in side the jar ,why?

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4