When a 500. gram sample of water at 19.0oc absorbs 8.40 kilojoules of heat, the temperature of the water will change to?
a) 23.0oc b) 19.0oc
c) 15.0oc d) 4.00oc

How to solve 4 nh3(g) + 5 o2(g) > 4 no(g) + 6 h2o(g) in chemistry

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

What forms when chemical reactions combine pollution with sunlight?