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A leaving group is a nucleophile acting in reverse; it accepts a lone pair as the bond between it and its neighbor (usually carbon for our purposes) is broken.So what makes a good leaving group?The “happier” and more STABLE that lone pair is, the better a leaving group it will be. The most predictive rule for leaving group ability is….Good leaving groups are weak bases.Why?THINK about the DISSOCIATION of an acid H–A to give H+ and A– . The species A– is the CONJUGATE base of HA. It accepts a pair of electrons from the H-A bond. It’s a base acting in reverse.The more stable A- is, the greater the equilibrium constant will be that favors dissociation to give A- .

!Acid is a chemical SUBSTANCE that NEUTRALIZES ALKALIS, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting LIQUID of this kind.

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rge of 27g of Al3+ ions = 6.026 x 1023 x 4.806 x 10-19 coulombs = 2.896 x 105 Coulombsplease mark me BRAIN mark LIST

Atomic number of an atom depends uponIts chemical BEHAVIOR is determined by the atomic number 2 (the number of PROTONS), which EQUALS the normal number of electrons; the stability of its nucleus (that is, its radioactivity) varies with its atomic weight (APPROXIMATELY equal to the number of protons and neutrons).

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Strong Acids and BasesHCl (hydrochloric acid)HNO3 (nitric acid)H2SO4 (sulfuric acid)HBr (hydrobromic acid)HI (hydroiodic acid)HCLO3 (chloric acid)HClO4 (PERCHLORIC acid)

Why are decomposition REACTIONS CALLED the opposite of COMBINATION reactions ? WRITE equations for these reactionsExplanation:good morning

there is no generalisation that across a PERIOD bond length decreases as bond orders may be different for different molecules ( 3 for N2 2 for O2 and 1 for F2) also generalisation of bond order in a group depends upon the type of the compound formed , eg in group 17 if bond length is COMPARED for F2 Cl2 and Br2 it'll be in order ( Cl2

निश्चित आयतन व आकार व होता है।    ठोस के अणुओं में अंतरा अणुक आकर्षण बल अत्यधिक होता है।    ठोस के अणुओं का सघन रूप से व्यवस्थित होने के कारण यह कठोर पदार्थ होते हैं।    जैसे बर्फ, धातुएं, लकड़ी आदिplease MARK me BRAIN mark LIST

a stock or supply of money, materials, staff, and other assets that can be DRAWN on by a person or organization in order to function effectively.an action or strategy which MAY be adopted in adverse CIRCUMSTANCES. EXPLANATION:please mark me as BRAINLIST.

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a - 9 ( 3s 3×3p 5×3d)b - (1)- it'll look like a d u m b b e L l (2) it will be spherical in shapec - MAXIMUM two NUMBERS of electrons are possible in an orbital, as no more than two electrons can have the same SET of four Quantum numbers as described by the Pauli exclusion principled - spherical and d u m b b e l le - Dz^2 and Dx^2-Dy^2

s a basic economic concept INVOLVING the BUYING and selling of goods and SERVICES, with COMPENSATION paid by a buyer to a SELLER, or the exchange of goods or services between parties.

180.156g/mol. this is the ANSWER of the QUESTION

solution which can DISSOLVE more of solute at a GIVEN temperatureExplanation:FM me and mark braniliest and THANKS

Natural resources are MATERIALS from the EARTH that are used to support life and meet people's needs. . OIL, coal, natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water. Animals, birds, FISH and plants are natural resources as WELL

Answer: Exothermic REACTIONS : Reactions in which heat is given out along with the PRODUCTS are CALLED exothermic reactions.Examples:- Rusting IRON, settlingEndothermic reactions:Reactions in which ENERGY is absorbed are known as endothermic reactions.Example : The process of photosynthesis, melting of ice

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The WORD is Solution.Hope this HELPS you!PLEASE MARK me as BRAINLIEST:)

Endothermic reaction: In an endothermic reaction, the PRODUCTS are higher in ENERGY than the reactants. Therefore, the change in ENTHALPY is positive, and HEAT is absorbed from the surroundings by the reaction.Explanation:

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No gussa Explanation:A convex lens is also KNOWN as a CONVERGING lens. A converging lens is a lens that CONVERGES rays of light that are traveling parallel to its PRINCIPAL axis. They can be identified by their shape

s-block ELEMENTS are the elements found in Group 1 and Group 2 on the PERIODIC table. Group 1 are the alkali metals which have one valence electron. They have low ionization energies which makes them very reactive. Group 2 is the alkali EARTH metals which have two valence electrons, FILLING their s sublevel.Explanation:

since it is given that 50 gm water at 20 ⁰ C and 50 gm of water at 40⁰ C are mixed.  Since the masses of the LIQUID at different temperatures are same, the answer is very easy and simple :  average of 20⁰C and 40⁰C.  that is:  30⁰C.Explanation: final temperature of the MIXTURE =       = [ m1 * T1 + m2 * T2 ] / (m1 + m2)     = [ 50 gm * 20⁰ C + 50 gm * 40⁰C ]  / (50+50)       = 3,000 / 100 = 30⁰C  another way using specific heats :     let the final temperature be = T ⁰C   Amount of heat given out by the hot water = m * s * (40⁰C - T)           = 50 gm * s* (40 -T)   Amount of heat taken in by the COLD water = m * s * (T - 20⁰C)       = 50 gm * s * (T - 20 )     As the amounts are equal, because the heat is transferred from hot water to the cold water without any loss of heat to any surroundings,           50 * s * (40 -T) = 50 gm * s  * (T-20)                   40 - T = T - 20             2 T = 60    => T = 30⁰C

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1.44×103log k=8.16 ANSWER

are opaque, lustrous elements that are GOOD conductors of HEAT and electricity. Most metals are malleable and ductile and are, in GENERAL, denser than the other ELEMENTAL SUBSTANCES.

We can distinguish between an alcohol and a carboxylic acid:1. LITMUS testTake 2 ml of alcohol and carboxylic acid in a test TUBE, PUT 1 drop of blue litmus in each test tube, the liquid which shows no effect is alcohol whereas the liquid which turns red is a carboxylic acid

F is having highest electron GAIN enthalpy... so it is most negativebrainliest plzz