How much energy, in kilojoules, is released or absorbed from the reaction of one mole of nitrogen, N2, with three moles of molecular hydrogen, H2, to form two moles of ammonia, NH3? H-N (bond energy: 389 kJ/mol) H-H (bond energy: 436 kJ/mol) N
N (bond energy: 946 kJ/mol) N N + H-H + H-H ? NH3 + NH3 A) +899 kJ/mol absorbed
B) -993 kJ/mol released
C) +80 kJ/mol absorbed
D) -80 kj/mol released
D
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of which contribute skeletal materials to the reef framework. Fill in the blank(s) with the appropriate word(s).
The depositional landform resulting from a stream flowing into a standing body of water is a point bar
Indicate whether the statement is true or false
The numerous violent confrontations between Sunni and Shi'ite Muslims result more from politics and historical legacies rather than differences in religious doctrine. What caused the schism in Islam and what positions in the argument did Sunnis and Shi'ites take?
What Latin American country has promoted a "myth of racial democracy"?
A) Mexico B) Brazil C) Chile D) Argentina E) Bolivia