Which system at equilibrium will be least affected by a change in pressure?

A. 3 H₂(g) + N₂(g) ↔ 2 NH(g)
B. 2 S(s) + 3 O₂(g) ↔ 2 SO₃(g)
C. AgCl(s) ↔ Ag+(aq) + Cl–(aq)
D. 2 HgO(s) ↔ 2 Hg(l) + O₂(g)

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?