The following pictures represent solutions at various points in the titration of a weak acid HA with aqueous NaOHNaOH. (Na+Na+ ions and solvent water molecules have been omitted for clarity.) Which picture corresponds to each of the following points in the titration? (a) Before the addition of any NaOHNaOH (b) Before the equivalence point (c) At the equivalence point (d) After the equivalence point

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

What are transitions between a liquid and gas called? identify which way they are transitioning

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant