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 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 addition reactions to alkenes follow the mechanism of electrophilic addition.

Most experimentally observed reactions are built up from many elementary reactions that occur in parallel or sequentially.

Most enzyme reaction rates are millions of times faster than those of comparable un-catalyzed reactions.

Most Np is produced in nuclear reactions:

Most RNA molecules are linear, single-stranded molecules, but both circular and branched molecules can result from RNA splicing reactions.

Most grand unified theories ( GUTs ) explicitly break the baryon number symmetry, which would account for this discrepancy, typically invoking reactions mediated by very massive X bosons () or massive Higgs bosons ().

Most of the ultraviolet spectrum ( which begins above energies of 3. 1 eV ( 400 nm ) is non-ionizing, but is still biologically hazardous due the ability of single photons of this energy to cause electronic excitation in biological molecules, and thus damage them by means of unwanted reactions.

Most of the ozone that is destroyed is in the lower stratosphere, in contrast to the much smaller ozone depletion through homogeneous gas phase reactions, which occurs primarily in the upper stratosphere.

Most steroidogenic reactions are catalysed by enzymes of the cytochrome P450 family.

Most games produced in the Dallas office were hampered by production delays, missed deadlines, and poor critical reactions ( see Production history below ).

Most Grignard reactions are conducted in ethereal solvents, especially diethyl ether and THF.

Most systems found in nature are not in thermodynamic equilibrium ; for they are changing or can be triggered to change over time, and are continuously and discontinuously subject to flux of matter and energy to and from other systems and to chemical reactions.

Most of these reactions are minor.

* Most polymerisation reactions

Most chemical databases store information on stable molecules but in databases for reactions also intermediates and temporarily created unstable molecules are stored.

Most often of all, the reduction of iodine to iodide is the last step in a series of reactions where the initial reactions are used to convert an unknown amount of the solute ( the substance you want to analyze ) to an equivalent amount of iodine, which may then be titrated.

Most commonly, amination reactions involve the use of the amine as the nucleophile and the organic compound as the electrophile.

Most of the time, Martin did not know who the guest would be, to keep his reactions more spontaneous, according to Hale's book Backstage at the Dean Martin Show.

Further developments in the current century might be said to be the increased recognition that ' Most countertransference reactions are a blend of the two aspects ', personal and diagnostic, which require careful disentanglement in their interaction ; and the possibility that nowadays psychodynamic counsellors use countertransference much more than transference − ' another interesting shift in perspective over the years '.

Most important, fermentation regenerates NAD < sup >+</ sup >, maintaining the NAD < sup >+</ sup > concentration so that additional glycolysis reactions can occur.

Most chemical reactions take more than one elementary step to complete, and a reactive intermediate is a high energy, yet stable, product that only exists in one of the intermediate steps.

Most chemical reactions can be hastened with an accelerant.