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8g of H2 is the RIGHT answer

ong>Explanation:

Heavy water is basically used as a moderator in nuclear REACTORS to slow down the neutrons so that they are captured and BECOME effective to bring about the fission reaction.

The main reason why heavy water is used as a moderator is because it CAPTURES LESS neutrons than the normal water.

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Triple bond, in CHEMISTRY, a covalent linkage in which TWO atoms share three pairs of electrons, as in the nitrogen molecule, N2, or acetylene, C2H2.

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electric current is the FACTOR

H4Na2O4Z

Explanation:

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ong>ANSWER:

fecl3+3Naoh$$$$ fe(oh)3 + 3 NACL

Explanation:

20 gm if fe(oh)3 and 12 gm of nacl

aCO3 + H2O + CO2

Explanation:

LIKE and FOLLO

class 11TH CHAP. S-block

ong>Answer:

E=mc'2 this is a ELECTRIC PRESSURE

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If work is done on the system, its SIGN is positive. If work is done by the system, its sign is NEGATIVE

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ong>ANSWER:

The melting point of a compound depends on Vander walls force of attraction which increases as molecular size increases, in given compounds Sr atom has the LARGEST size, so vanderwalls force of attraction will be GREATER in SRF2 and it will have the highest melting point.

ong>Answer:

Equivalent weight unlike molecular weight is proportional MASS of chemical entities which combine or displace other chemical entities. It is defined as the mass of an element/compound/ion which COMBINES or DISPLACES 1 part of hydrogen or 8 parts of oxygen or 35.5 parts of chlorine by mass.

The QUANTITY of electricity required to deposit 1.15 g of sodium from molten NaCl (NA = 23, Cl = 35.5) is :

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Mass of Na is divided with its atomic mass to obtain number of moles.Number of moles of Na = 1.1523 = 0.05 moles. Na^ + + e^ - → Na THUS,

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ong>EXPLANATION:STRONG>

Cyanoacrylates are a family of strong fast-acting adhesives with industrial, medical, and household uses. They are derives from ethyl cyanoacrylate and related esters.

The cyanoacrylate GROUP in the monomer RAPIDLY polymerize in the presence of water to FORM long, strong chains. They have some minor toxicity.

Corrosion is when a refined METAL is naturally converted to a more stable FORM such as its oxide, hydroxide or sulphide STATE this leads to deterioration of the material.

ong>ANSWER:

oxidation number of H ATOM = +1

oxidation number of N atom = x

sum of oxidation number of all ATOMS = 0

oxidation number of H + 3 × oxidation number of N = 0

1 + 3x = 0

x = - 1/3

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ong>Answer:

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Explanation:

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ong>Answer:

Unquestionably indeed, as Green Ape CBD GUMMIES is DELIVERED utilizing the local plant called hemp. It is 100% SHIELDED and LIBERATED from RUINOUS manifestations. The makers have guaranteed that this great formula doesn't contain such a body harming constituents.

the reaction intermediate is (b) CO2

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ong>Answer:

The octet rule is a chemical rule of THUMB that reflects the theory that main group elements TEND to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble GAS. The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens, but also to metals such as sodium or MAGNESIUM.

The valence electrons can be counted using a Lewis electron DOT diagram as shown at the right for carbon dioxide. The electrons shared by the two atoms in a covalent bond are counted twice, once for each atom. In carbon dioxide each oxygen shares four electrons with the central carbon, two (shown in red) from the oxygen itself and two (shown in black) from the carbon. All four of these electrons are counted in both the carbon octet and the oxygen octet, so that both atoms are considered to obey the octet rule.

Explanation:

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for azimuthal quantum (l) = 2 ,

m = ( 2 × 2 + 1 ) = 5

THUS the number of maximum ELECTRON is ( 5×2) = 10

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ong>Answer:

MITOCHONDRIA are membrane-bound CELL organelles (mitochondrion, SINGULAR) that GENERATE most of the chemical energy needed to power the cell's biochemical REACTIONS. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

ong>Answer:

elements in a group have the same PHYSICAL and chemical properties because their ATOMS have the same number of valence electrons or same valence shell ELECTRONIC CONFIGURATION.

6.022 × 6.643

40.004146

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Alcohols are OFTEN used as substrates in Friedel-Crafts ALKYLATION reactions. Sulfuric acid is used as a catalyst with alcohols, forming an alkyl sulfate that reacts with the AROMATIC substrate.

मैं खेतों में काम करता हूं तभी मेरे परिवारों को खाना मिलता है फसल अच्छी हो तो कोई चिंता नहीं होती मगर जब किसी आपदा के कारण मेरी फसल निष्फल हो जाती है तब मेरे साथ साथ मेरा परिवार भी मुश्किलों में पड़ जाता है मुझे बहुत ही भारी नुकसान का सामना करना पड़ता है जिसमें मेरा परिवार भी शामिल होता है वह मेरे हर सुख-दुख में हर ...so pls respect kisaan agar kisaan HEIN to ham hein

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ong>ANSWER:

These metals are less reactive than the neighboring ALKALI metal. MAGNESIUM is less active than sodium; calcium is less active than potassium; and so on. These metals become more active as we go down the COLUMN. Magnesium is more active than BERYLLIUM; calcium is more active than magnesium; and so on.

ong>ANSWER:

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The quantity l/A is called cell CONSTANT denoted by the symbol, G*. if we know l and A. Its UNIT are cm–1 ohm–1. The molar conductivity of 0.025 mol L–1 methanoic acid is 46.1 S cm2 mol–1.

ong>ANSWER:

Each oxygen atom has 8 protons in its nucleus, while each nitrogen atom has only 7 protons in its nucleus. ... O2 "permeates" approximately 3-4 times faster than does N2 through a typical RUBBER, as is used in tires, PRIMARILY because O2 has a slightly smaller effective molecular size than does N2.

Explanation:

Ba(OH)2+NH4cl=bacl2+NH4OH

As the BOTTOM of the test tube becomes cool hence we conclude that the reaction is endothermic as it ABSORBS heat from its ENVIRONMENT to complete the reaction

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ong>Explanation:

Among H2 , He2^+ , Li2 , Be2 , B2 , C2 , N2 , O2^- , and F2 , the number of diamagnetic species is (Atomic numbers: H = 1 , He = 2 , Li = 3 , Be = 4 , B ...

Six species are diamagentic as all electrons are paired. These are H2 (σ 1s)^2 , Li2 KK (σ 2S)^2 , Be2 KK (σ 2s)^2 (σ ^* 2s)^2 , C2 KK (σ 2s)^2 ...

ong>ANSWER:

Number of PERIODS= 7

Number of GROUPS= 18

ong>ANSWER:

b) TETRAGONAL THREE dimensional

Explanation:

COAL

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ong>ANSWER:

The basic natural radioactive ELEMENTS are INCLUDED into four radioactive series as shown in Table I. These are: thorium series, neptunium series, URANIUM series and uranium-actinium series. All of radioactive series articles are bond by irreversible reciprocal transformations.

ong>ANSWER:

Aldehydes, KETONES and CARBOXYLIC Acids

Zigya App. Give the reaction of ACETONE with SEMICARBAZIDE. When acetone react with semicarbazide, it forms semicarbazone.

Photosynthesis, the process by which green plants and certain other organisms TRANSFORM light energy into chemical energy. During photosynthesis in green plants, light energy is captured and USED to convert WATER, carbon dioxide, and minerals into oxygen and energy-rich ORGANIC compounds.

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Partial molar volumes help to assess the influence of pressure on phase equilibria or REACTION equilibria. The prediction of partial molar volumes or EXCESS volumes is a sharp test for theories of the FLUID state.

On the other hand, the interpretation of partial molar volumes or excess volumes is usually difficult, if not impossible. Many mixtures exhibit positive and negative excess volumes, depending on composition, temperature, and pressure. Speculations why some mixture exhibits positive or negative excess volumina are futile, particularly if they are based on measurements at ambient pressure and temperature only.

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ong>Answer:

Follow  i n s t a g R a m = niral161

Explanation:

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→ (c)NH4OH versus CH3COOH

→ Because it is to DANGEROUS.

ANS will be 50mg because of m=60 and 50G =0÷50g

Explanation:

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