What are the major profession area of Nepal?​

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

What is the value of the standard enthalpy of formation of an element in its most stable form?