The general chemical equation for the reaction between metals and acids to produce hydrogen gas is: Metal + Acid → Salt + Hydrogen gas

Acids are another class of substances that react with metals to produce hydrogen gas. Examples include hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3).

Long-term consumption of alcohol can lead to various health problems, including liver damage, cardiovascular issues, addiction, neurological disorders, and an increased risk of certain cancers.

Pure ethanol, also known as absolute alcohol, can be lethal even in small quantities due to its high toxicity.

Consumption of small quantities of dilute ethanol causes drunkenness, which is a socially widespread practice despite being condemned.