IG nment/takeCovalentActivity dolocators assignment-takeâtakeAssignmentsessionLocator-assignment-take Use the Refereaces to access impertant valoes if weeded fer this qurstios For the decomposition of ammonia on a platinum surface at 856 °C 2NH N23H the average rate of disappearance of NHy over the time period from t 0stot- 4666 s is found to be 1.50-10* Ms The average rate of formation of H2 over the same time period is Ms Subenit Answes Retry Entire Group 9 more group attempts remaining