How many liters of hydrogen are required to produce exactly 3.0 liters of ammonia?

According to the tide table below what time of day will the highest tide occur?

Which element would mostly likely have an electron affinity measuring closest to zero

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.