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infinite EXPLANATION:The GRAVITATIONAL force becomes ZERO at infinite and at the centre of the earth. At INFINITY because of the distance and at centre because of ABSENSE of direction. This answer is hypothetical.

British chemist John Newlands was the first to arrange the elements into a periodic table with increasing ORDER of atomic MASSES. He found that every EIGHT elements had SIMILAR properties and called this the law of octaves

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Solution: We should add ICE to the lemonade after dissolving sugar. It is possible to DISSOLVE more sugar before ADDING ice because as the temperature .

1 MOLE CONTAINS 6.023*10∧23 ELECTRONS. 2 MOLES CONTAIN [6.023*10∧23]*2 ELECTRONS. MASS OF 1 ELECTRON IS 9.1094*10∧-31kg. THEREFORE mass of 2 moles of electrons is 2*[6.023*10∧23]*[9.1094*10∧-31]

Dihydrogen GAS ADDS to alkenes and alkynes in the presence of finely DIVIDED CATALYST like PT, Pd or Ni to form alkane.

A neutral atom of an element has 2 ELECTRONS in the first energy level, 8 in the SECOND energy level and 8 in the third energy level. This information does not necessarily tell us: (a) The ATOMIC number of the element. (b) Anything about the element's chemical PROPERTIES.(C) Anything about the mass of the atom (d) Anything about the neutrons of the element

internal electrode, USUALLY silver CHLORIDE electrode or CALOMEL electrode. internal SOLUTION, usually a pH=7 buffered solution of 0.1 mol/L KCl for pH electrodes or 0.1 mol/L MCl for pM electrodes. when using the silver chloride electrode, a small amount of AgCl can precipitate INSIDE the glass electrode.

sociology, there are THREE main PARADIGMS: the FUNCTIONALIST paradigm, the conflict paradigm, and the symbolic interactionist paradigm. These are not all of the paradigms, however, and we'll consider others as well as more specific topic-based variations of each of the “BIG Three” theories.

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22 Karat Gold: It CONTAINS 22 parts of gold mixed with 2 parts of other metals such as COPPER, zinc. Due to other traces of metal in the COMPOSITION, it is harder than a 24K pure gold and thus, APPROPRIATE to make jewellery. Gold of this karat is also known as ‘916 gold’ as it COMPRISES 91.67% of pure gold.

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The structure of HClO4 should be tetrahedral. So when there is a NEGATIVE CHARGE on oxygen, it should not be in RESONANCE with other oxygen ATOMS as a condition for resonance is that the atoms taking PART in resonance should lie in a plane.

X-ray Crystallography is a scientific METHOD used to determine the arrangement of ATOMS of a CRYSTALLINE solid in three dimensional space. This technique TAKES advantage of the interatomic spacing of most crystalline solids by employing them as a diffraction gradient for x-ray light, which has wavelengths on the order of 1 angstrom (10 -8 cm).

It is some reactive or dangerous element and we might GET INJURY LIKE BURN .

In tarnished COPPER VESSEL there is layer formed due to CORROSION which is basic in nature which is DISSOLVED in the lemon or tamarind juice which are acidic in nature. Thus the vessel get thoroughly cleaned.hope it HELPS you ✌️✅✅✅

Phenylethyl alcohol FOLLOWED ethyl alcohol as the main commercial alcohol. It is the most used FRAGRANCE in the perfume and cosmetic industries.Explanation:PLEASE mark me as a BRAINLIEST

tion:3s1 represents an element of GROUP 1 and PERIOD 3. so it is Na with atomic NUMBER 11.

36Explanation:what's GOING on with your FRIENDS

Friedel-Crafts Alkylation refers to the REPLACEMENT of an aromatic proton with an ALKYL group. This is done through an electrophilic attack on the aromatic RING with the help of a carbocation. The Friedel-Crafts alkylation reaction is a method of GENERATING alkylbenzenes by using alkyl halides as reactants.

λ = 1.46236× 10⁷ mExplanation:n₁ = 1n₂ = 2 (BALMER series)Rh - constant = 1.09677 × 10⁷ m⁻¹1 / λ = 1 / Rh [ 1/n₁² - 1/n₂²]        = 1 /  1.09677 × 10⁷ [ 1/1² - 1/2²]        = 1 /  1.09677 × 10⁷ [ 1/1 - 1/4]        = 1 /  1.09677 × 10⁷ [ 4 - 1 / 4]        = 1 /  1.09677 × 10⁷ [ 3 / 4]λ = 1.09677 × 10⁷ × 4 / 3λ = 1.46236× 10⁷ m

nch of SCIENCE concerned with the substances of which MATTER is composed, the INVESTIGATION of their properties and reactions, and the use of such reactions to form new substances.

Until now, the most COMMON technique used for the separation of such azeotropic compounds is EXTRACTIVE distillation that requires a large amount of ENERGY, high pressure and the USE of volatile organic solvents [6]EXPLANATION:plz mark my answer in brainliest

tion:LIMITATIONS of Newland's LAW of Octaves:Newland could arrange elements only up to calcium, out of the TOTAL 56 elements known.After calcium, every eighth ELEMENT did not possess properties similar to that of the first.Only 56 elements were known at the time of Newlands, but later several elements were discovered.MARK AS BRAINLIEST.

Burning COAL is a CHEMICAL change called combustion. A combustion is the chemical reaction (REDOX reaction) of coal with oxygen O2. It is exothermic, which means it releases ENERGY : hence the heat.

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The elementary charge, usually DENOTED by e or SOMETIMES qₑ is the electric charge carried by a SINGLE proton or, equivalently, the magnitude of the negative electric charge carried by a single ELECTRON, which has charge −1 e. This elementary charge is a fundamental physical CONSTANT.