Which of the following reactions shows that the formation of NO 2 requires 33.1kJ / (mol) ? 1 2 N 2 (g)+O 2 (g) NO 2 (g)+33.1 kJ N(g)+2O(g) NO 2 (g)+33.1 kJ 1 2 N 2 (g)+O 2 (g)+33.1kJ NO 2 (g) ) OD N(g)+O(g)+33.1KJ NO 2 (g)

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.