What concentration of H+ ions does a substance with a pH of 3 have? 1x10-5 mol/dm3
1x10-2 mol/dm3
1x10-4 mol/dm3
1x10-3 mol/dm3​

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?

When a septic tank backs up a goes in to clean it out

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume