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tion:ITHE sum of the mole of SOLUTE and SOLVENT is SOLUTION

In absorption, the atoms enter into the bulk PHASE of a liquid or solid whereas ADSORPTION substances adhere to the surface of the MOLECULE....Complete step by step answer:Absorption AdsorptionIt is a bulk phenomenon It is a surface phenomenonExplanation:MARK as me BRAIN list please thanks my all answers OK

7.4The pH SCALE ranges from 0 (strongly acidic) to 14 (strongly basic or ALKALINE). A pH of 7.0, in the MIDDLE of this scale, is neutral. Blood is normally slightly basic, with a normal pH range of 7.35 to 7.45. Usually, the body maintains the pH of blood close to 7.40.So, the correct answer is '7.4'.Explanation:

4f and 5f orbitals of f-block elements are STEADILY in LATER of two long periods. Based on ... The general VALENCE shell CONFIGURATIONS of every transition elements are (n-1) d1–10.ns0, 1, 2.

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Explanation:EXAMPLE of Inert Pair Effect Sn2+ and Pb2+ and Sb3+ and Bi3+ which are the lower OXIDATION states of the elements are formed because of the inert pair effect. When the s electrons remain paired the oxidation STATE is lower than the characteristic oxidation state of the GROUP.

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42=16.The last number MUST be 16. Let's check it.(x+4)2=x2+8x+16The ANSWER is 16.

In 1913, Niels Bohr proposed a THEORY for the hydrogen atom, based on quantum theory that some physical quantities only TAKE discrete values. Electrons move AROUND a NUCLEUS, but only in prescribed orbits, and If electrons jump to a lower-energy orbit, the DIFFERENCE is sent out as radiation.

Explanation:Taste : A tasteless gas. CONDUCTIVITY : A poor CONDUCTOR of heat and electricity. SOLUBILITY : Slightly soluble in water, ALCOHOL and some other COMMON liquids. Density : It is denser than air.

10Explanation:it's ALREADY GIVEN in the QUESTION no. of MOLES in 10 moles of O²

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Ore is NATURAL rock or sediment that contains one or more valuable MINERALS, typically CONTAINING METALS, that can be mined, treated and sold at a profit. Ore is extracted from the EARTH through mining and treated or refined, often via smelting, to extract the valuable metals or minerals

Explanation:Particulate pollution is pollution of an environment that CONSISTS of particles suspended in some medium. ... Some particles are released directly from a specific source, while others form in CHEMICAL reactions in the atmosphere.Photochemical smog is a mixture of pollutants that are formed when nitrogen OXIDES and volatile organic COMPOUNDS react to sunlight, creating a brown haze above cities. It tends to occur more often in summer, because that is when we have the most sunlight.

An EMPTY PLASTIC container ____can be____ squeezed considerably, COMPARED to a plastic container containing water.

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The correct OPTION is ' d '.Explanation:Hope it HELPS you.Please mark as BRAINIEST.

your answer isExplanation:As we increase the concentration of SUBSTANCE , then speed of the reaction INCREASES . Hence A is CORRECT OPTION

The colour will TURN into BLUE black,If the student is USING a flax paper.Explanation:FLOW the extra copper oxide throw a beaker or,Use the process of sublimation.

Gram MOLECULAR weight of H3PO4 is = (3×1)+31+(4×16) =3+31+64=98 grams Explanation:98 G of H3PO4…..3×6.023×10^23 H ATOMS 8G of H3PO4……..? No of H atoms in 8 g of H3PO4 = (8×3×6.023×10^23)/98=1.47×10^23 H atoms are present.

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In Valence Shell Electron Pair Repulsion (VSEPR) theory, pairs of electrons that surround the central atom of a molecule or ION are arranged as far apart as possible to minimise electron-electron repulsion. Decide which is the central atom in a molecule. ..Explanation:In CH4, the central atom is C, which is in SP3 hybridization state. The four H-atoms are situated at the four corners of the tetrahedron. The BOND angle between H—C—H is 109.5°, which is called the tetrahedral angle. But in the case of NH3 and H2O MOLECULES, their central atoms N and O have a lone pair of electrons.

k = 0.693 /t 1/2 = 0.693 /990 s = 7 × 10-4 s-1t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]TT 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 MOL dm-3, t = 35 MIN or 2100 s,t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 mol dm-3, t = 35 min or 2100 s, [A]t = ?t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 mol dm-3, t = 35 min or 2100 s, [A]t = ? log10t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 mol dm-3, t = 35 min or 2100 s, [A]t = ? log10 [A]0/ [A]t = k t /2.303 = 7 × 10-4 s-1 × 2100 s /2.303 = 0.6383t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 mol dm-3, t = 35 min or 2100 s, [A]t = ? log10 [A]0/ [A]t = k t /2.303 = 7 × 10-4 s-1 × 2100 s /2.303 = 0.6383 [A]0/ [A]t = antilog 0.6383 = 4.35t 1/2 = 0.693 /990 s = 7 × 10-4 s-1 k = 2.303 t log10 [A]0/ [A]t [A]0 = 0.08 mol dm-3, t = 35 min or 2100 s, [A]t = ? log10 [A]0/ [A]t = k t /2.303 = 7 × 10-4 s-1 × 2100 s /2.303 = 0.6383 [A]0/ [A]t = antilog 0.6383 = 4.35 Hence, [A]t = [A]0 4.35 = 0.08/ 4.35 = 0.0184 mol dm-3

Calculate the MOLECULAR mass of CACO3 (At mass Ca = 40 u, C = 12 u, O = 16 u) = 100 u. = 90 g.

Oxalic ACID is widely used as an acid rinse in laundries, where it is EFFECTIVE in removing rust and ink stains because it CONVERTS most insoluble iron compounds into a SOLUBLE complex ION.

m/m12g / 72g1/60.166

Ionic compounds do not conduct electricity in solid state. Because , Absence of MOBILE ions in solid stateReason Ions in an ionic lattice are fixed at their POSITIONS and can only oscillate about their mean positions. HENCE, in the solid state, the ions are not free to move. While in molten form, these ions can freely move in the SOLUTION which also allows the passage of electricity. The right reason is the absence of mobile ions in the solid state.

Examples of DOUBLE SALTS include alums (with the general formula MIMIII[SO4]2·12H2O) and Tutton's salts (with the general formula [MI]2MII[SO4]2·6H2O). Other examples include potassium sodium tartrate, ammonium iron(II) sulfate (Mohr's salt), and bromlite. The fluorocarbonates contain fluoride and carbonate ANIONS.

(180 G/MOLE X 0.5 mole = 90 g).

kal milte hai aapseExplanation:Complete the following reactions. (i)Mg + CuSO4-------->(ii) PB(NO3)2+Heat--------->(ii) AG + FESO4--------- >(iv) 2FeSO4 (S)Heat------>

The PLANES of a CUBIC unit cell are (a). (1,1,0) (b). (1,1,1) (c). (0,0,1) (d). (1,0,1) (E). (2,0,1) (f). (0,1,1) (a). We need to draw the cubic unit cell For plane (1,1,0) (b). We need to draw the cubic unit cell For plane (1,1,1) (c). We need to draw the cubic unit cell For plane (0,0,1) (d). We need to draw the cubic unit cell For plane (1,0,1) (e). We need to draw the cubic unit cell For plane (2,0,1) (f). We need to draw the cubic unit cell For plane (0,1,1) HENCE, The required solution.

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tion:180gweight of salt = 90 gram, solubility = 50sing formula solubility of SOLUTE = weightofsolventinsaturatedsolutionweightofsoluteinsaturatedsolution ×100or 50= weightofsolventinsaturatedsolutio90gm ×100so weight of solvent in saturated SOLUTION = 5090gm ×100=180gmHence 180 gm of water is REQUIRED to prepare a saturated solution.

4 + Cub) I THINK the QUESTION is not complete . even the 1st question I ASSUME is wrong. still pb+. no3-c) AgSO4 + FED) 2 fe2+. 2 so4 2-

1 true2true3 FALSE more than one substance can be formed4 false it does not change5 false it cannot TAKE place in dry air 6 true7 false it is not an example of curdling8 TRUE

N-Ethyl-N-methylacetamide | C5H11NO - PUBCHEM.

Electronic CONFIGURATION In the first transition series, 3d orbitals are PROGRESSIVELY filled WHEREAS, in second and third transition series, 4d and 5D orbitals are filled.

Significant figures (also known as the significant digits, precision or resolution) of a number in POSITIONAL notation are digits in the number that are RELIABLE and absolutely NECESSARY to indicate the QUANTITY of something. If a number EXPRESSING the result of measurement of something (