Most identities in chemical thermodynamics arise from application of the first and second laws of thermodynamics, particularly the law of conservation of energy, to these state functions.

Most chemical reactions are reversible, that is they can and do run in both directions.

Most of the country's products are in engineering, especially in automobiles, machinery, metals, and chemical goods.

( Most of the universe's mass is not in the form of chemical elements — that is, " baryonic " matter — but is made up of dark matter and dark energy.

Most inhalant drugs that are used non-medically are ingredients in household or industrial chemical products that are not intended to be concentrated and inhaled.

Most tanks and infantry fighting vehicles ( IFVs ) of the 21st century have specially designed nuclear, biological and chemical protective systems that make them internally air-tight and sealed ; they are well protected from vapors, gases, and liquids.

Most industrial chemical applications of potassium employ the relatively high solubility in water of potassium compounds, such as potassium soaps.

Most chemical synthesis methods proceed from C-terminus to N-terminus, opposite the biological reaction.

Most inhalant drugs that are used non-medically are ingredients in household or industrial chemical products that are not intended to be concentrated and inhaled, including organic solvents ( found in cleaning products, fast-drying glues, and nail polish removers ), fuels ( gasoline ( petrol ) and kerosene ), and propellant gases such as Freon and compressed hydrofluorocarbons that are used in aerosol cans such as hairspray, whipped cream, and non-stick cooking spray.

Most satellites have simple reliable chemical thrusters ( often monopropellant rockets ) or resistojet rockets for orbital station-keeping and some use momentum wheels for attitude control.

Most ores are a chemical compound of the metal with other elements, such as oxygen ( as an oxide ), sulfur ( as a sulfide ) or carbon and oxygen together ( as a carbonate ).

Most chemical processes can be studied directly in a laboratory, using a series of ( often well-tested ) techniques for manipulating materials, as well as an understanding of the underlying processes.

Most of this plasticity occurs at the neurochemical level ; dopamine transport systems are slowed, allowing dopamine to linger for longer periods of time in the chemical synapses in the striatum.

Most commonly associated with radiological or chemical materials, dirty bombs seek to kill or injure and then to deny access to a contaminated area until a thorough clean-up can be accomplished.

Most satellites have simple reliable chemical thrusters ( often monopropellant rockets ) or resistojet rockets for orbital station-keeping and some use momentum wheels for attitude control.

Most chelicerates rely on modified bristles for touch and for information about vibrations, air currents, and chemical changes in their environment.

Most Culture individuals opt to have drug glands that allow for hormonal levels and other chemical secretions to be consciously monitored, released and controlled.

Most industrial complexes are scattered throughout the city, however, the ' Zachem ' chemical works deserves attention, covering tens of square kilometers in the south-east of the city, the remnants of the German explosives factory built in World War II occupy an area which has its own rail lines, internal communication, housing, and large forested area.

Most LDPE, MDPE and HDPE grades have excellent chemical resistance, meaning that it is not attacked by strong acids or strong bases.

Most cast irons have a chemical composition of 2. 5 to 4. 0 % carbon, 1 to 3 % silicon, and the remainder is iron.

" Most autotrophs capture the suns energy in chlorophyll, but some autotrophs ( the chemolithotrophs ) obtain energy by the chemical oxidation of inorganic compounds and can grow in dark environments, such as the sulfur bacterium Thiobacillus, which lives in hot sulfur springs.

Most of the fat must be trimmed off prior to drying the meat, as fat does not dry, thus creating the potential for spoilage as the fat becomes rancid ( modern vacuum packing and chemical preservatives have served to help prevent these risks ).

Most spacecraft have some variety of rocket engine, and thus most research efforts focus on some variety of rocket propulsion, such as chemical, nuclear or electric.

Most force fields in chemistry are empirical and consist of a summation of bonded forces associated with chemical bonds, bond angles, and bond dihedrals, and non-bonded forces associated with van der Waals forces and electrostatic charge.

Most classical force fields implicitly include the effect of polarizability, e. g. by scaling up the partial charges obtained from quantum chemical calculations.

Most recently the term persistent organic pollutant ( POP ) has come to describe a group of chemicals such as PBDEs and PFCs among others.

Most chemicals display a classic dose response curve-at a low dose

Most plants store chemicals in the vacuole that react with chemicals in the cytosol.

Most common epoxy resins are produced from a reaction between epichlorohydrin and bisphenol-A, though the latter may be replaced by similar chemicals.

Most treatment has relied so far on trying to counteract the released chemicals with anti-histamines, corticosteroids or Salbutamol.

Most liquid hand and body soaps contain antibacterial chemicals.

Most crystal scintillators require high-purity chemicals and sometimes rare-earth metals that are fairly expensive.

Most chemical bagasse pulp mills concentrate the spent reaction chemicals and combust them to power the paper mills and to recover the reaction chemicals.

Most USDAW members work in the retail sector, but the union also has many members in transport, distribution, food manufacturing, chemicals and other trades.

Most liquid-cooled engines use a mixture of water and chemicals such as antifreeze and rust inhibitors.

Most chemigation valves consist of a spring-loaded check valve, a low pressure drain, an air and vacuum relief valve, and an injection port for introducing the chemicals downstream of the check valve.

Other industries in Most include textile, ceramics, steel, and chemicals.

Most chemicals within it are within normal limits, with slightly higher levels of sulfates due to the gypsum and dolomite present in the bedrock.

Most of the best-known research chemicals are structural analogues of tryptamines or phenethylamines, but there are also many other completely unrelated chemicals that can be considered as part of the group.

Most notably, the company has established a joint venture with Dupont in the area of herbicides and domestic chemicals.

Most fabric softeners use petroleum-based chemicals which deplete a non-renewable source and are not easily bio-degradable.

Most conventional foams are produced using chemicals that could be bad for the environment.