Consider the following equation for the combustion of ammonia. Assume all substances are gases measured under the same conditions. 4NH3 + 3O2 → 2N2 + 6H2O How many liters of N2 is formed when 125 L of NH3 is burned?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159