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it is a PHYSICAL propertiesExplanation: FOLLOW me

as the electron in the penultimate and anti penultimate shells are equal and effective nuclear charge increases, KO2 is paramagmetic and LI2O is diamagnetic in NATURE from the MOT(molecular ORBITAL theory).

Explanation:MILK is converted into CURD by the process of fermentation. Milk consists of globular proteins called casein. The curd forms because of the chemical reaction between the lactic acid bacteria and casein. During fermentation, the bacteria USE enzymes to produce ENERGY (ATP) from LACTOSE.

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te ur ANSWER ISB) DECREASING hope this helps you...FOLLOW me :)

baking POWDER is a dry CHEMICAL LEAVENING agent. it is MIXTURE of CARBONATE or bicarbonate and weak acid.

Because of DIFFERENCE of POLAR and NON polar lithium iodine is less SOLUBLE in water but due to SIMILARITY of property of lithium iodide with alcohol ,it is more soluble.

l chαngє :-  A type of change in which a new substance is formed after the reaction.--------------Q) Which of the following are CHEMICAL changes ?1) Growth of a plant ✔2) Rusting of iron ✔:3) Mixing of iron FILLINGS and sand ✘4) Cooking of food ✔5) Digestion of food ✔6) Freezing of water ✘7) Burning of a CANDLE ✔--------------Extra info :-▪ Growth of a plant is a chemical change as there are many changes happening during the growth process.▪ Rusting of iron is a chemical change as iron reacts with air to produce a new substance rust.▪ During cooking, the chemical composition of the food changes, hence it is chemical change.▪ Digestion is also a chemical change as the food gets broken down into simpler substances.▪ Burning of candle PRODUCES, HEAT therefore it is also a chemical change.

The moles and molecules of acetic acid PRESENT in 22g can be calculated very easily by performing following steps .Step 1.Molecular Formula of Acetic Acid = CH3COOHStep 2:Add all the mass of the molecular formula,C= 12H=1O= 16Therefore, CH3COOH = 12+(1*3)+12+16+16+1                                       = 60Step 3 :Mole = Molar Mass / GIVEN Mass       = 60/22       = 2Step 4 :Number of molecules = No of mole * 6.023 * 10^ 23                                      =  2 * 6.023 * 10^ 23                                       = 12.046 * 10^23(Answers)

Answer : (a) When dilute sulphuric ACID is poured on a copper plate, bubbles of hydrogen gas appear on the SURFACE of plate. (b)When we add IRON in the copper SULPHATE solution. The blue colour of copper sulphate fades and there is deposition of copper on the iron NAIL.

i THINK this is an correctExplanation:74 . 375 . 2

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e the answer is C) COPPER sulphate solution

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16.00 U Explanation:mass of an atom of oxygen in gram = 26.56896×10^24 g 1.66056×10^-24 g = 1 u 26.56896 × 10 ^-24 g = X Then , 26.56896×10^-24 g / 1.66056× 10^-24 g= 16.0 u.

Hola ✌️Explanation:PHOTOSYNTHESIS is an endothermic REACTION because sunlight ENERGY is absorbed during the process of photosynthesis by the PLANTS. And our definition says that when in a reaction heat is absorbed it is termed as endothermic reaction.hope it helps uh ✨

udent,◆ ANSWER -(B) 90.92 %● Explanation -Natural abundance of isotopes is WRITTEN in PERCENTAGE, hence natural abundance of Neon-20 must be option (B) 90.92 %.Neon has 3 isotopes - neon-20, neon-21 and neon-22.Neon-20 (Abundance = 90.48 %)Neon-21 (Abundance = 0.27 %)Neon-22 (Abundance = 9.25 %)Thanks DEAR. Hope this helps you...

udent,◆ Answer -(B) O2(g + 2H2(g) = 2H2O(g)● Explaination -According to AVOGADRO's law, equal volumes of all GASES, at the same TEMPERATURE and pressure, have the same number of molecules.Reaction,O2(g + 2H2(g) = 2H2O(g)In above reaction, 1 molecule of O2(g) and 2 molecules of H2(g) react to give 2 molecules of H2O(g).Hence according to Avogadro's law, 1 volume of O2(g) and 2 volumes of H2(g) react to give 2 volumes of H2O(g).Therefore, ratio of volumes of reacting gases and the PRODUCT in the reaction is 1:2:2.Thanks dear. HOPE this helps you...

udent,◆ Answer -(B) 2.016 litre● Explaination -Mass of pure LIMESTONE is 10×90/100 = 9 g.Moles of limestone = 9/100 = 0.09 molHeating of calcium carbonate gives same no of moles of CO2. HENCE, Moles of CO2 = 0.09 MOL. Volume of CO₂ at NTP is calculated as -Volume = 22.41 × molesVolume = 22.44 × 0.09Volume = 2.016 litreThanks dear. HOPE this helps you...

The reasons are as follows:Explanation:(a) Aluminium is used to wrap food items because it is a malleable metal and does not react with food items.(b) Imersion Rods for heating liquids are made of metal substance because they are good conductors of heat.(c) copper cannot displace zinc from its SALT solution because it is less reactive than zinc ACCORDING to the reactivity SERIES.(d) sodium and potassium are stored in kerosene because kerosene prevents their contact with atmospheric GASES. if they react with atmospheric gases, it ignites. so, in ORDER to prevent the ignition sodium and potassium are stored in kerosene.

cExplanation:VOLUME can be occupied by so that volume can be occupied by 1gg MOL. WT at any gas is GRAM mol. wt

c) 70 PARTS by mass of YExplanation:NUMBER of ELEMENTS = 2 = X and YNumber of compounds = 3 = A B and CIn B, 32 parts of X combine with Y = 84 PARTS16 parts of X combine with Y =  42 partsThe number of parts of X in both B and C is of equal to the MASSES of Y combining with a fixed mass of X in B and C in ratio 3:5Mass of Y in B / Mass of y in C =3/5 = 42 parts / Mass Y in C = 3/5Mass of Y in C = 5/3×42 =70 partsThus, parts by mass of X will combine with 70 parts by mass of Y

udent,◆ Answer -(B) b₁ and b₂ bear a simple whole number RATIO● LAW of multiple proportions -It STATES that when two elements combine with each other to form more than one compound, the WEIGHTS of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.For example, in CO 16 g of O combines with 12 g C & in CO2 32 g of O combines with 12 g C. Ratio of O combining with fix weight of C in CO and CO2 is 1:2 respectively.Thanks dear. Hope this helps you...

C) No. of MOLECULE Explanation:USE AVOGADRO's law.hope it helps you!!