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N-TYPE semiconductorExplanation:When Si is doped with As, four electron of As forms covalent BOND with the four electrons of Si while ONE electron remains free for conduction. N- type of SEMICONDUCTOR is denoted by positive ion and free electron.

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* Lithium NITRIDE is a FLAMMABLE SOLID. * For fires use dry chemical POWDER. * DO NOT USE WATER. * POISONOUS GASES ARE PRODUCED IN FIRE, including Lithium Oxide, Nitrogen Oxides and Ammonia.

Lithium is unique in the GROUP because it also reacts with the NITROGEN in the air to form lithium NITRIDE (again, see below). Lithium burns with a STRONGLY red-tinged flame if heated in air. For the RECORD, it also reacts with the nitrogen in the air to give lithium nitride.

The SECOND law of THERMODYNAMICS states that the total entropy of a system either INCREASES or REMAINS constant in any spontaneous process; it never decreases.Hope it helps, mark as brainliest.

When lithium REACTS with NITROGEN gas at room temperature form nitrides.Explanation:when lithium reacts with nitrogen it FORMS lithium nitride. It is stable because the lattice energy forms during the FORMATION of lithium Nitride.

Does this experimental process support Hess's law? Suggest WAYS of improving your RESULTS. Yes, this experiment SUPPORTS Hess's Law. The enthalpy of reactions 1 and 2 add up to the calculated enthalpy for REACTION 3, EVEN though it's not the same as the the accepted value.mark as brainliest

has very small size and high POLARISING power and HENCE high ionization energy due to which it is difficult to remove the outermost ELECTRON. So, lithium is the only alkali METAL which does not react with ETHYNE to give ethynide.

tion:carbon is EVERYWHERE. You're made partly of carbon, so is clothing, furniture, plastics and your HOUSEHOLD machines. There is carbon in the air we BREATHE. Diamonds and GRAPHITE are ALSO made of carbon.

500mL SOLUTION with a final concentration of .1M  Na:  22.989 AMU O:   15.999 AMU H:   1.008 AMU =39.996 AMU  (rounded to 40amu) 40 amu= 1 mole NaOH  To make one mole NaOH solution, dissolve 40 grams NaOH in 500mL of H2O.  mL to L CONVERSION: 500/1000=.5 For .5L of 0.1M solution, we need 0.1M of solute. 0.1M of solute x 40 grams/Mole= 4 grams NaOH

nExplanation:and I am AIKK the QUESTION is a very GOOD MORNING

um carbonate is used in the manufacture of glass. Potassium hydroxide is used to make DETERGENT and liquid soap. Potassium CHLORIDE is used in pharmaceuticals and SALINE DRIPS. Potassium is ESSENTIAL to life.That's Easy!!!

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tion:Both of them have small SIZE and thus they have better ionizing energy and also they both form a stable HYDRIDE than any other alkali metal. Both of these metals show anomalous behaviour DUE to their high electronegativity and high POLARIZING power.

tion:Reason: The hydration enthalpies of alkali metal ions DECREASE with increase in ionic sizes. HENCE, Li+ ion can polarize water molecules more easily than other alkali metals. ... As a RESULT, water molecules get attached to LITHIUM salts as water of crystallization.

tion:When Lithium reacts with NITROGEN gas at room temperature (N2), it forms Lithium Nitride (Li3N) which is stable because the lattice ENERGY RELEASED from the formation of Li3N is high enough to make the OVERALL reaction exothermic.mark me as BRAINLIST.

The first law asserts that if HEAT is recognized as a FORM of energy, then the TOTAL energy of a system plus its surroundings is conserved; in other words, the total energy of the universe remains constant. ...

Key Terms. EXOTHERMIC: Of a chemical reaction that RELEASES energy in the FORM of heat. enthalpy: In thermodynamics, a MEASURE of the heat content of a chemical or physical SYSTEM. endothermic: Of a chemical reaction that absorbs heat energy from its surroundings.

ocess written as the sum of SEVERAL stepwise PROCESSES, the enthalpy CHANGE of the total process equals the sum of the enthalpy changes of the various steps. Hess's LAW is valid because enthalpy is a state function

The LARGEST reservoir of the EARTH's carbon is located in the deep-ocean, with 37,000 billion tons of carbon STORED, whereas approximately 65,500 billion tons are FOUND in the globe. Carbon flows between each reservoir via the carbon cycle, which has SLOW and fast components.

ent ANTIBODY, an antibody with AFFINITY for ONE epitope, ANTIGEN, or STRAIN of microorganism.

The melting point is usually DEFINED as the point at which materials changes from a SOLID to a liquid. The temperature at which solid changes its STATE to liquid at ATMOSPHERIC pressure is called the melting point of that liquid. This is the point at which both liquid and solid PHASE exists at equilibrium.

O OH II ICH3OH + CH3-C-H --- CH3-C-H (Hemiactal) I OCH3Formation of hemiacetal TAKES place hope this will HELP you

tion:ZN + H20+ Zn(NO3)2 + 2H20 + 2NoMark me as Brainlist PLEASE

carbon 55% pure SAMPLE of calcium carbonateExplanation:(Ca = 40, C = 12, O = 16)

tion:The Constitution of India is the supreme law in India . A Constitution is a set of rules and regulations guiding the administration of a country. The constitution of India is the FRAMEWORK for political principles, procedures and POWERS of the government. It is also the longest constitution in the world with 395 articles and 12 schedules. Originally it consisted of 395 Articles ARRANGED under 22 Parts and 8 Schedules. TODAY after MANY amendments, it has 447 Articles and 12 schedules and 25 parts ( According to 2019). The constitution was written on 26 November 1949, and was made the center of law on 26 January 1950.

Molality =0.1 mDegree of DISSOCIATION of CH3COOH=1.35%CH3COOH⇋ CH3COO−+H+ ;       α%=1.35%100                       0                           0100−1.35          1.35                  1.35∴i=100100−1.35+2×1.35 =100101.35=1.0135∴ΔTf=1.0135×1.86×0.1=0.1885∴Tfsolution=−0.1885oCπ=iCRT=1.0135×0.1×0.0821×298=2.48 ATMIF no dissociation is assumed i=1∴ Both △Tf & π are little bit HIGHER if i=1.0135 is considered

PropertiesLithium has a melting point of 180.54 C, a boiling point of 1342 C, a specific gravity of 0.534 (20 C), and a valence of 1. It is the LIGHTEST of the METALS, with a density approximately HALF that of water. Under ordinary conditions, lithium is the least dense of the solid elements.please mark me BRAIN mark list

Hess' Law states that the heat evolved or ABSORBED in a chemical process is the same whether the process takes place in ONE or in SEVERAL steps. This is also known as the law of CONSTANT heat summationExplanation: hope it help you Mark me as brainlist

(g/cc): 0.534.Appearance: soft, silvery-white metal.Isotopes: 8 isotopes [Li-4 to Li-11]. ...Atomic RADIUS (pm): 155.Atomic VOLUME (cc/mol): 13.1.Covalent Radius (pm): 163.Ionic Radius: 68 (+1e)Specific Heat (@20°C J/g mol): 3.489.please mark me BRAIN mark LIST

Enthalpy (ΔH) refers to the TOTAL heat content of the SYSTEM, if the change in enthalpy is POSITIVE, the reaction is ENDOTHERMIC in nature, and a LOWER enthalpy means it requires less energy.

1. IT'S THE "DUCT TAPE OF LIFE."It's in EVERY living thing, and in quite a few dead ones. "Water may be the solvent of the universe," writes Natalie Angier in her classic introduction to science, The Canon, "but carbon is the duct tape of life." Not only is carbon duct tape, it's one hell of a duct tape. It binds atoms to one another, forming humans, animals, plants and rocks. If we play around with it, we can coax it into plastics, paints, and all kinds of chemicals.2. IT'S ONE OF THE MOST ABUNDANT ELEMENTS IN THE UNIVERSE.It sits right at the top of the periodic table, wedged in between BORON and nitrogen. Atomic number 6, chemical sign C. SIX protons, six neutrons, six electrons. It is the fourth most abundant ELEMENT in the universe after hydrogen, helium, and OXYGEN, and 15th in the Earth's crust. While its older cousins hydrogen and helium are believed to have been formed during the tumult of the Big Bang, carbon is thought to stem from a buildup of alpha particles in supernova explosions, a process called supernova nucleosynthesis.3. IT'S NAMED AFTER COAL.While humans have known carbon as coal and—after burning—soot for thousands of years, it was Antoine Lavoisier who, in 1772, showed that it was in fact a unique chemical entity. Lavoisier used an instrument that focused the Sun's rays using lenses which had a diameter of about four feet. He used the apparatus, called a solar furnace, to burn a diamond in a glass jar. By analyzing the residue found in the jar, he was able to show that diamond was comprised solely of carbon. Lavoisier first listed it as an element in his textbook Traité Élémentaire de Chimie, published in 1789. The name carbon derives from the French charbon, or coal.

HydrogenThis is your ANSWER.

Due to SMALL SIZE of Li it forms some covalent compounds whereas other MEMBERS of its group form only IONIC compoundsLi does not have empty d orbital whereas OTHERS have empty or filled d orbital

ongest FORM of CARBON is carbyne.

ond LAW of thermodynamics describes the nature of processes and chemical reactions as follows: processes occur spontaneously if and only if by their process, the ENTROPY change in the universe, is greater than or equal to zero. MARK me as the BRAINLIEST