The building blocks of life on Earth may have been fueled by tiny sparks hopping between water droplets. Four billion years ...

The equation shows that ammonium chloride (a white solid) can break down to form ammonia and ... reverse process. The reaction between anhydrous copper(II) sulfate and water is used as a test ...

One famous experiment conducted in 1952 by American chemists Stanley Miller and Harold Urey provided a possible explanation: ...

ammonium nitrate and ammonium sulfate – can be identified by heating a solution of the ions with sodium hydroxide. This reaction produces ammonia gas, as shown in the ionic equation below: ...