12 relations: Alcohol, Critical point (thermodynamics), Dibromodifluoromethane, Diethyl ether, Fire extinguisher, Gas, Hydrogen, Montreal Protocol, Ozone depletion, Ozone depletion potential, Refrigerant, Trihalomethane.
In chemistry, an alcohol is any organic compound in which the hydroxyl functional group (–OH) is bound to a carbon.
Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.
The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.
Christmas traditions vary from country to country.
In thermodynamics, a critical point (or critical state) is the end point of a phase equilibrium curve.
Dibromodifluoromethane is a mixed halomethane.
Diethyl ether, or simply ether, is an organic compound in the ether class with the formula, sometimes abbreviated as (see Pseudoelement symbols).
A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations.
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).
Hydrogen is a chemical element with symbol H and atomic number 1.
The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.
New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.
New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
Ozone depletion describes two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere(the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions.
The ozone depletion potential (ODP) of a chemical compound is the relative amount of degradation to the ozone layer it can cause, with trichlorofluoromethane (R-11 or CFC-11) being fixed at an ODP of 1.0.
A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle.
Trihalomethanes (THMs) are chemical compounds in which three of the four hydrogen atoms of methane (CH4) are replaced by halogen atoms.
2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.
2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.