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Answer:

THUS, the empirical formula of the COMPOUND is CH2Cl. For CH2Cl, empirical formula mass= 12+ (2×1) +35 = 49g. Molar mass/ empirical formula = 98.96g/ 49g = 2=n Therefore, Empirical formula = CH2Cl n=2 HENCE, MOLECULAR formula= C2H4Cl2.

Explanation:

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Answer:

Any substance which gives hydrogen IONS when dissolved in water is known as ACID. When phenol is dissolved in water,undergoes DISSOCIATION to give hydrogen ion and phenoxide ion. Phenoxide ion is very well stabilised by resonance. Hence phenol is acidic.

Explanation:

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◆ Answer- 26.47 %

◆ EXPLANATION-

# Given-

• m = 72 g

• M = 200 g

• T = 20 °C

# Solution-

➼Concentration of the solution is given by-

➼C = mass(solute) / mass(solution) × 100

➼C = m / (m+M) × 100

➼C = 72 / (72+200) × 100

➼C = 72 / 272 × 100

∴C = 26.47 %

Concentration of the solution is 26.47 % .

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Answer:

CHLORINE is powerful OXIDISING AGENT than iodide.

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तरंग संख्या तथा तरंग दैर्घ्य में संबंध

तरंग संख्या = 1/तरंग दैर्घ्य

Explanation:

तरंग संख्या:

एक मीटर लम्बाई में तरंगों की संख्या को तरंग संख्या कहते हैं| तरंग संख्या का मात्रक प्रति मीटर है|

तरंग दैर्घ्य:

तरंग के समान कला वाले दो क्रमागत बिन्दुओं के बीच की दूरी को तरंग दैर्घ्य कहते हैं| उदहारण के लिए दो श्रृंगों या दो गर्तों के बीच की दूरी| तरंग दैर्घ्य का मात्रक मीटर है| इसे λ से निरूपित करते हैं|

यदि किसी तरंग का तरंग दैर्घ्य है तो उस तरंग की तरंग संख्या होगी

तरंग संख्या

आशा है यह उत्तर आपकी सहायता करेगा|

और जानिये:

प्र. किसी ध्वनि तरंग की तरंगदैर्घ्य, आवृत्ति, आवर्त काल तथा आयाम से क्या अभिप्राय है?

यहाँ जानिये: brainly.in/question/8788043

प्र. किसी ध्वनि तरंग की तरंगदैर्घ्य तथा आवृत्ति उसके वेग से किस प्रकार संबंधित है?

यहाँ जानिये: brainly.in/question/8788047

ANSWER:

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Answer:

Fesun. Fesun (, also Romanized as Fesūn, Fasoon, Fasūn, and Fosūn) is a village in Qaleh ZARI RURAL DISTRICT, Jolgeh-e Mazhan District, Khusf County, South Khorasan PROVINCE, Iran. At the 2006 census, its population was 34, in 10 families.

Answer:

"More is the strength , more STRONGER is the bonding , hence more is the boiling point" . If we compare METHYL bromide and methyl iodide , methyl iodide has less boiling point ,SINCE Br is more electronegative, it withdraws more ELECTRON towards itself and hence increase DIPOLE moment within the atom .

ANSWER:

Cu+H2SO4=CUSO4+SO2+H2O

Mg(s)+ HNO3=Mg(NO3)2

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ANSWER:

Explanation:

N = 3

L = 2

m = -2,-1,0,1,2

1) To the ethyl alcohol ADD hydrogen IODIDE to obtain Ido-ethane . 2) Now allow ido-ethane to react with ammonia to FORM ethyl amine, Nucleophliic substitution reaction.

Answer:

Explanation:

They are tartrate, fluoride, borate, phosphate, OXALATE, they are ALSO known as anionic radicals. USUALLY used to FORM a complex with 3rd gr group which later leads to incomplete precipitation of 3rd group and RESULTS in immature precipitation of 5th group.

ANSWER:

C6H5C(CH3)(C6H5)BR is most REACTIVE TOWARDS SN1 reaction.

Explanation:

Diluting acids and bases

Water is mostly water MOLECULES so adding water to an acid or base reduces the concentration of IONS in the solution. When an ACIDIC solution is DILUTED with water the concentration of H + ions decreases and the pH of the solution increases TOWARDS 7.

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Answer:

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Explanation:

WASHING soda is USED:

In laundries and in softening of water as washing soda.

In the manufacture of glass,sodium silicate, PAPER,borx,soap powder, caustic soda,etc.

As a laboratory reagent.

In textile and PETROLEUM refining.

For the preparation of VARIOUS carbonates of metals.

Answer:

i22 ie and I the the Himalayas the the Himalayas the the 66 6

Explanation:

COMPLETED mam UH HUH uh uh huh uh the Himalayas and

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Adenosine triphosphate (ATP), ENERGY-carrying molecule found in the cells of all LIVING THINGS. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to FUEL other cellular processes.

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ANSWER:

The PROPERTY of DULLNESS is not SHOWN by METALS.

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let the oxidation NUMBER of the atom be 'x'

a) Ca (loses 2 electrons, so, +2)

+2 + 2(+1+x-6) = 0 (over all charge of the compound is zero, and I've MULTIPLIED by 2, since there are two entities of HCO₃)

+2 + 2 + 2x - 12 = 0

2x = +8

x= +4

b) sodium loses 1 electron, 2 sodium atoms LOSE 2 electrons

    Oxygen gains 2 electrons, 4 oxygen atoms gain 8 electrons

    +2 + x - 8 = 0

      x = +6

Answer:

a) BURNING of paper is a chemical CHANGE because after burning, the paper turns to ASH and it's chemical properties also changes.

b) Cutting of a cloth piece is a physical change because even if the cloth gets cut, it's pieces will remain cloth only.

c) burning of candle is an IRREVERSIBLE change because once the candle turns into wax after burning, we can't turn that wax into candle again.

Explanation:

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Answer:

The plasma membrane is CALLED a selectively PERMEABLE membrane as it permits the movement of only certain molecules in and out of the CELLS. Not all molecules are free to diffuse. If plasma membrane ruptures or breaks down then molecules of some SUBSTANCES will freely move in and out of the cells. As the plasma membrane acts as a mechanical barrier, the exchange of material from its surroundings through osmosis or diffusion in a cell won’t take place. Consequently, the cell would die due to the disappearance of the protoplasmic material. It allows hydrophobic molecules and small polar molecules diffuse through the lipid layer, but does not allow ions and large polar molecules cannot diffuse through the membrane.

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Answer:

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Explanation:

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Answer:

Washing soda is sodium carbonate containing 10 MOLECULES of WATER of crystallisation.It is called as sodium carbonate DECAHYDRATE. It is prepared by Solvay's process. 1)A cold and concentrated SOLUTION of sodium chloride is reacted with ammonia and carbon dioxide to obtain sodium HYDROGEN carbonate.

The precipitation reaction is the double DISPLACEMENT reactions involving the production of a solid FORM residue called the PRECIPITATE. The reaction also occurs when two or more solutions with different SALTS are combined, RESULTING in the formation of insoluble salts that precipitates out of the solution.

• your answer is double displacement

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When the pressure on the PISTON is doubled, it MOVES downward until the pressure exerted by the GAS EQUALS the pressure exerted by the piston. At this point the volume of the gas is halved. If the pressure on the piston is again doubled, the volume of gas decreases to one-fourth its original volume.

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ANSWER:

Explanation:

CONVERT THIS IN THE QUESIONS NOT AS A PIC PLZZ WILL U

Answer:

hi

mineral is a solid inorganic, solid with CRYSTALLINE STRUCTURE which are FORMED NATURALLY on earth by geological process

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ANSWER: ch3ch2mgcl+c2h5oh = ch3ch2oh+mgcl2

EXPLANATION:

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ANSWER:

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When an ACID REACTS with a metal CARBONATE or metal hydrogen carbonate, it GIVES the corresponding salt, GAS and product.

DERIVE an expression for the rate constant of first order REACTION.

solution : LET a chemical reaction occurs in first order kinetics such that, A ⇒ constant

initial concentration of substance is [A]₀ , final concentration of substance is [A]t and rate constant is k.

for first order reaction,

DECREMENT rate in the concentration of A = k[A]

⇒- d[A]/dt = k[A]

⇒∫d[A]/[A] = - k∫dt

⇒ln[A] = -kt

⇒ln[A]t - ln[A]₀ = -kt

⇒kt = ln[A]₀ - ln[A]t

⇒kt = ln{[A]₀/[A]t}

⇒k = 1/t ln{[A]₀/[A]t}

⇒k = 2.303/t log{[A]₀/[A]t}

THEREFORE rate constant of the first order reaction is k = 2.303/t log{[A]₀/[A]t}.

ANSWER:

SODIUM CARBONATE

calcium carbonate

ANSWER:

blueish green ,Iron(II) sulfate or FERROUS sulfate denotes a range of SALTS

ANSWER:

Sodium chloride (NACL) and sodium sulphate (NA2SO4).

Answer:

The Reaction of a BASIC Salt in Water

Because it is capable of deprotonating water and YIELDING a basic solution, SODIUM bicarbonate is a basic salt. Other examples of basic salts include: Calcium CARBONATE (CaCO3) Sodium acetate (NaOOCCH3)

Explanation:

It is a type of DECOMPOSITION reaction. When electricity is passed through an aqueous solution of SODIUM chloride (called brine), it decomposes to FORM sodium HYDROXIDE. The PROCESS is called the chlor-alkali process because of the products formed- chlor for chlorine and alkali for sodium hydroxide.

ANSWER:

उफर्जंद धफजजर जडकडक दजफजफज जक्सजफजफ जफजफज जधगळपाप jqooqqjdfjj

Answer:

Dot method or dot map is the best way to show the distribution of the population in the region. Using the dot method, you can EASILY FIND the exact population number in the particular region. In the dot map, the distribution is shown with the HELP of dots whose value is pre-determined by choosing the appropriate scale.

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Explanation:

SALT is not always acidic in NATURE. salt is formed by the reaction between ACID and BASE. when strong acid reacts with weak base then the salt formed is acidic but when a strong base reacts with weak acid then the salt formed is basic in nature. ... NaHSO4 is a salt, HOWEVER it is slightly acidic.

ANSWER:

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Answer:

NH3 LITMUS RED to red

SO2 litmus blue to red

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Explanation:

Anhydrous calcium chloride is HYGROSCOPIC in nature. Hygroscopic substances are those substances which absorb or adsorb WATER. ... Therefore, hygroscopic substances are kept in AIR tight containers. So, if anhydrous calcium chloride is exposed to the atmosphere for abut two days...

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Answer:

MAGNESIUM, Mg , is LOCATED in period 3, group 2 of the periodic table, and has TWO electrons on its outermost SHELL, i.e. two valence electrons**. ... The electrostatic FORCE of attraction will then bring the magnesium cations and the sulfur anions together → an ionic bond is formed.

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ANSWER:

here is your answer

Explanation:

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EXPLANATION:

To fully understand a chemical reaction, a balanced chemical EQUATION must be written. Chemical reactions are balanced by adding coefficients so that the number of atoms of each element is the same on both sides. Stoichiometry describes the RELATIONSHIP between the AMOUNTS of reactants and products in a reaction.

Dude, the products FORMED are sodium zincate and hydrogen gas

The OVERALL balanced reaction is:

2NaOH + Zn = Na₂ZnO₂ + H₂

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ANSWER:

i there is electro negative then they are acidic in NATURE and if they are electro positive they are basic in nature

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Answer:

Here's your answer mate

Explanation:

SODIUM chloride (NaCl), also known as SALT, is an essential compound our body USES to:

1. absorb and transport nutrients.

2. maintain blood pressure.

3. maintain the right balance of fluid.

4. transmit NERVE signals.

5. contract and relax muscles.

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