4NH3(g) + 3O2(g) --> 2N2(g) + 6H2O(l)

H = 1530.4 kJ

If the temperature of this system is increased, then the equilibrium will shift to the and the amount of N2 gas will .

a. left, increase
b. left, decrease
c. right, decrease
d. right, increase

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

What material does not melt at any temperature

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?