2Na + 2H2O → 2NaOH+ H2

How many grams of H2 are produced if 120 g of Na react completely?

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.