Elements:
* Mercury (Hg) - The only metal liquid at room temperature.
* Bromine (Br) - A reddish-brown, volatile liquid.
Compounds:
* Water (H2O) - The most common liquid on Earth.
* Ethanol (C2H5OH) - Found in alcoholic beverages.
* Acetone (CH3COCH3) - A common solvent.
* Glycerol (C3H8O3) - A viscous, sweet liquid used in many applications.
* Acetic acid (CH3COOH) - The main component of vinegar.
* Sulfuric acid (H2SO4) - A highly corrosive liquid used in industry.
* Nitric acid (HNO3) - A strong acid used in the production of fertilizers.
* Hydrochloric acid (HCl) - A strong acid found in the stomach.
* Ammonia (NH3) - A colorless gas, but it can be liquefied under pressure.
* Hydrogen peroxide (H2O2) - A colorless liquid used as a disinfectant.
Mixtures:
* Gasoline - A mixture of hydrocarbons.
* Kerosene - A mixture of hydrocarbons.
* Oil - A complex mixture of hydrocarbons.
* Milk - A mixture of water, fat, protein, and other components.
* Blood - A complex mixture of cells, plasma, and other substances.
Note:
* "Room temperature" is generally considered to be around 20-25 degrees Celsius (68-77 degrees Fahrenheit).
* The exact temperature range for liquid state can vary depending on the substance.
* Some substances, like mercury, can be frozen at very low temperatures.
* Other substances, like water, can be vaporized at high temperatures.
This list is not exhaustive, but it provides a good overview of common substances that are liquid at room temperature.
