The standard molar enthalpy of formation of NH3(g) is -45.9 kJ/mol. What is the enthalpy change if 9.51 g N 2(g) and 1.96 g H2(g) react to produce NH
3(8)?
a.-29.8 kJ/mol-rxn
b.-43.7 kJ/mol-rxn
C.-10.3 kJ/mol-rxn
d.-20.7 kJ/mol-rxn
e. -65.6 kJ/mol-rxn

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy