Which coefficients balance this equation?
_h2 + _n2 -> _nh3
a. 1, 2, 3
b. 2, 3, 2
c. 3, 1, 2
d. 4, 1, 3

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2