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ANSWER:

Answer is a iii.Ca

Explanation:

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Explanation:

This liquid absorbs water on EXPOSURE to humid air. After exposure to air, the freezing point of 98.0 G sample of the ORGANIC liquid is 24.62 °C.

ANSWER -

The bond length order will be CO3^-2>CO2 >CO.

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EXPLANATION:

ANSWER:

IA group elements oxidisation NUMBER =1

Answer:

8kg

EXPLANATION:

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ANSWER:

B is correct PLZ MARK me as brainiest

Answer:

A→ DIFFERENT lines CORRESPOND to different TRANSITIONS.

B→ different transitions are DUE to different excited states available.

Answered By

Explanation:

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ANSWER:

BERYLLIUM BCZ its SPELLING is wrong .

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Answer:

The idea of equivalent MASS to compare chemically different elements! ATOMS combine with each other to form chemical compounds, such that the elements are always present in definite proportions by mass and this property can be used to MAKE chemically different MOLECULES with different mass, equal.

Explanation:

ANSWER:

bbsbsbabNNnamaamamammamakakakakakakaajshhsgshshshshshshhss

Explanation:

sjsnsnsjsjshhabsfollow plzzhggcvcgcbcccccvfgfffffffgffffffffbvcchvcfccnbcbvcnvcvbbvvvvgggggbnbcvvvnbvbbb

ong>Explanation:

Explanation:

Answer:

Answer:

Answer:

Answer:

Width of rectangle is 25 CM.

Step-by-step explanation:

Given :-

A WIRE bend in form of square of side 30 cm.

Then wire is again bend in form of rectangle of length 35 cm.

To find :-

Width of the rectangle.

Solution :-

Here, CONCEPT is : If we are bending wire in form of square than again bending it in rectangle. Than, perimeter of square will equal to perimeter of rectangle because we are not increasing length of wire by one measure we are bending it in square and rectangular shape.

So,

Perimeter of square = 4 × side

⟶ Perimeter = 4 × 30

⟶ Perimeter = 120

Thus,

Perimeter of square is 120 cm.

According to concept, Perimeter of square and perimeter of rectangle are equal.

So, Perimeter of rectangle is 120 cm.

Let, Breadth or width or rectangle be x cm.

We know,

Perimeter of rectangle = 2(Length + Breadth)

⟶ 120 = 2×(35 + x)

⟶ 120 = 70 + 2x

\⟶ 120 - 70 = 2x

⟶ 50 = 2x

⟶ 50/2 = x

⟶ x = 25

We TAKE, Width of rectangle be x.

Therefore,

Width of rectangle is 25 cm.

ong>EXPLANATION:

Copper HYDROXIDE + NITRIC acid

ug wulu EQUATION:

→ Copper nitrae + wa

ong>Answer:

Fatty acid ESTERS (FAEs) are a type of ESTER that RESULT from the combination of a fatty acid with an ALCOHOL. When the alcohol component is glycerol, the fatty acid esters produced can be monoglycerides, diglycerides, or triglycerides. Dietary fats are chemically triglycerides.

ong>ANSWER:

mxmxmdmd the EARTH ROTATES to R u all of the year I have been doing a

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ong>Explanation:

First , we NEED to FIND the moles of the gaseous substance .

As per the formula ,

\begin{gathered}\implies\mathtt{ moles = MASS / MOLAR\: mass} \\\end{gathered}

⟹moles=mass/molarmass

⇒ moles = 5 / 200

⇒ moles = 1 / 40

⇒ moles = 0.025

As per the relation ,

\begin{gathered}\implies \mathtt{moles = volume / 22.4 L (NTP )} \\\end{gathered}

⟹moles=volume/22.4L(NTP)

⇒ volume = moles x 22.4

⇒ volume = 0.025x 22.4

⇒ volume = 0.56 L

The volume of the substance at NTP is

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ANSWER:

Explanation:

STARS are powered by NUCLEAR fusion in their cores, mostly CONVERTING hydrogen into helium. The production of new elements via nuclear reactions is called nucleosynthesis. A star's mass determines what other TYPE of nucleosynthesis occurs in its core (or during explosive changes in its life cycle).

ong>Answer:

its most general form, ALGEBRA is the study of MATHEMATICAL symbols and the rules for manipulating these symbols; it is a UNIFYING THREAD of almost all of mathematics. It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields

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ong>Answer:

it states that the equivalent conductive of an ELECTROLYTE in a infinite dilution us equal to the sum of the conductance of ANION and cation

rln BTW Gibbs energy of CELL reaction and cell potential

∆G°= -nfE°cell

ong>Answer:

It is the FORMULA of MAGNESIUM SULPHATE.

ong>Answer:

a measure of the ENERGY contained in the crystal LATTICE of a compound, equal to the energy that WOULD be released if the component ions were brought TOGETHER from infinity.

Explanation:

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ong>ANSWER:

In Diamond CRYSTAL each carbon ATOM is LINKED with carbon ATOMS the number of carbon atoms linked is

Pure substance

Explanation:

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They are called SEDIMENTS

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ong>Answer:

Phenol is prepared when Chlorobenzene is FUSED with SODIUM HYDROXIDE at the temperature range of 623K and pressure around 320 atm. After the fusion of Chlorobenzene with sodium hydroxide sodium phenoxide is produced which on acidification gives phenol.

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ong>Answer:

(a) Fog : LIQUID (water drops) acts as dispersed phase and GAS (air) as the DISPERSION MEDIUM. (b) Cheese : Solid (fat) acts as the dispersed phase and water (liquid) as the dispersion medium. (c ) Coloured gem stone : Solids act as the dispersed phase as well as the dispersion medium.

Na2CO3+H2SO4→Na2SO4+H20+CO2

J.J. Berzelius

The Swedish SCIENTIST J.J. Berzelius proposed in 1813 that chemical symbols be based on the LATIN names of the ELEMENTS, a proposal generally ADOPTED by the mid-19th century.

answer is 18.55 OK if we CALCULATE

ong>Answer:

COMPLETE the QUESTION bro

ong>Answer:

A displacement reaction is the one WHEREIN the atom or a set of ATOMS is DISPLACED by another atom in a MOLECULE.

A+ B – C → A – C + B. The equation exists when A is more reactive than B.

benzene have the MAXIMUM resonance energy...!

ong>Explanation:

the orators FLUENCY is GOOD BUT his speech is monotonous.

Stark effect is SPLITTING of spectral lines under the influence of ELECTRIC field. 3) Bohr's atomic model does not explain the fine spectrum of hydrogen atom. (When spectrum of hydrogen atom is seen by high resolving spectroscope , then it is found that single LINE is made up of so many fine lines.)

EXPLANATION:

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Explanation: I don’t KNOW the ANSWER

ong>ANSWER:

molarity and VOLUME of KOH is 0.5M,20ml..

M1=0.5M. V1=20ml

molarity of nitric ACID is 0.25M,volume is ??

M2=0.25M. V2=?

KOH+HNO3--------^ KNO3+H2O

M1V1=M2V2

0.5*20=O.25*V2

V2=40ml

probablyb.C 2 H 5 O H. may be correct

is HYPERVALENT IODINE reaction

Explanation:

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thank you

ong>Answer:

A neutralization reaction can be defined as a chemical reaction in which an acid and BASE QUANTITATIVELY react TOGETHER to form a salt and water as products. In a neutralization reaction, there is a combination of H+ ions and OH– ions which form water.

TRUE

EXPLANATION:

because these produce a lot of POLLUTION

if they get DUMPED they will be formed into compost

ong>Answer:

Solution :

During acid rain, the nitric acid FORMED as a result of lightening PROCESS in very dilute form is WASHED down to earth and reacts with metal carbonates to form nitrates.

`CaCO_(3)+2HNO_(3)toCa(NO_(3))_(2)+CO_(2)+H_(2)O`. Nitrates so farmed, ACT as excellent nurtients for the growth of PLANTS.

ong>Explanation:

DOBEREINER's Triads are groups of three elements arranged in such a way that the atomic weight of the MIDDLE element is ALMOST the average of the other two. The elements of triad have almost similar properties.

For example, consider Li,Na and K with atomic WEIGHTS 7,23 and 39 g/mol respectively.

7+39/2 =23

The atomic weight of Na is almost the average of the atomic weights of Li and K. Other examples include

(i) Ca(40),Sr(88) and Ba(137)

(ii) Cl(35.5),Br(80) and I(127).

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Three allotropes of carbon is

• Diamond
• Graphite
• Bulkminsterfulleren

renchyma- CHLOROPLAST containing parenchymatous living cell.

include in photosynthesis process.

callenchyma- thickened corner DUE to DEPOSITION of cellulose, hemicellulose, pectin.

provide mechanical support to growing parts.

sclerenchyma- lignified cell wall. (dead cell)

provide mechanical support to plants.

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