Ammonia burns in the presence of a copper catalyst to form nitrogen gas. 4nh3(g) + 3o2(g) → 2n2(g) + 6h2o(g) δh = –1267 kj. What is the enthalpy change to burn 100 g of ammonia? molar mass=17 amu.

What is it called when someone gets sick from eating food contaminated with germs or toxins? a. potentially hazardous food b. ptomaine poisoning c. foodborne illness d. raw food

Dan runs a busy desktop-publishing company. his company want to increase its exposure, so it runs a new a new promotion each week. the tool dan most likely choses to publicize this is a promotion is a

The power train control module (pcm) or engine control module (ecm) will automatically clear a diagnostic code (dtc) if there are no additional faults detected aftera. the criteria to clear codes is reachedb. eighty warm up cyclesc. five key-on/key-off cyclesd. two consecutive trips