when the chemical reaction produces a gas, eg metal reacting with acid to produce hydrogen.

unconventional gas finds are more difficult to develop and more costly to produce. As technologies and skills improve, unconventional gas is a variable concept because some finds may become more ...

Reactions in which a gas is produced can be used to monitor the rate. For example, hydrogen gas is one of the products released when dilute hydrochloric acid reacts with zinc metal. By collecting ...