2NH2(g), to solve the following problems. Hint: Set up proportions. How
many moles of nitrogen would be needed to make 10.0 moles of ammonia?
a.
b. How many moles of ammonia could be made by completely reacting 9.00 moles of
hydrogen?
C. How
many moles of hydrogen would be needed to react completely with 7.41 moles of
nitrogen?

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock