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ANSWER:

i don't no.... i am SORRY

Answer:

6.8%

Explanation:

total MASS of substance=50+480+200

=730g

we KNOW that,

mass of solute/total mass of solution×100=concentration percentage

50/730×100=6.8%

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Answer:As a rule, each type of atom forms a CHARACTERISTIC number of covalent BONDS with other ATOMS. For example, a hydrogen atom, with one electron in its OUTER SHELL, forms only one bond, such that its outermost orbital becomes filled with two electron

ELECTRONIC CONFIGURATION = 2,8

ATOMIC NUMBER = 2 + 8 = 10

ATOM = NEON(Ne)

Since, it is an inert gas, therefore it is HELD by VANDER WAAL'S FORCE OF ATTRACTION.

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ANSWER:

also if the knot is wholly tight

there is some GAP left and as you matter has space between it

so there are micro HOLES on the surface.

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2 - phenyl pyridine is an ORGANIC

compound with FORMULA C6H5C5H4N .it is a COLOURLESS viscous liquid

ANSWER:

Zn+2 HCL ----> ZNCL2 + H2

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To balance the given or any chemical equation, follow these STEPS: Fe + H2O .... LEAD nitrate ⇨ Lead oxide + Nitrogen oxide + OXYGEN ..... (ii) NaOH + H2SO4 → Na2SO4 + H2O. 2.

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ANSWER:

hii friend

Explanation:

When one or more hydrogen atom of saturated aliphatic hydrocarbons or aromatic hydrocarbons are replaced by corresponding no. of HALOGEN atom then the new compound obtain are called halogen derivatives of alkanes.

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Both Aromatic and Aliphatic Compounds refer to the main forms of organic chemical compounds, and they are primarily composed of Carbon and Hydrogen.

The main difference between Aromatic and Aliphatic Compounds is that Aromatic compounds contain an aromatic ring which is a typical benzene ring whereas aliphatic compounds are simply the organic chemical compounds which do not contain an aromatic ring.

As MENTIONED above, aromatic compounds have a distinct aromatic ring which makes it different to other chemical compounds.

This aromaticity arises due to the ‘benzene ring’.

This is a typical chemical structure that contains six Carbon atoms, cyclically bonded with alternating double bonds.

This system possesses unique characteristics and makes aromatic compounds behave very differently in chemical reactions than other chemical compounds.

The nature of alternating double bonds is known as ‘conjugation’. It is because of conjugation that aromatic compounds are ABLE to exhibit very different reaction mechanisms.

Compounds with a benzene ring are considered to have high potential. They are able to sustain additional charges by making them migrate around the ring system.

However, the structure of the benzene ring is more complicated than it seems. It has been proven through experiments that the bonds between the six Carbon atoms are neither single bonds nor double bonds but have intermediate characteristics.

The benzene ring is a planar structure as opposed to many other chemical compounds. But when an additional group is bound to the benzene ring, the entire structure would fall out of the plane.

Some common examples of aromatic compounds are; benzene, toluene, xylene, aniline, etc.

These compounds are the other CLASS of organic chemical compounds which do not have a benzene ring in its structure. Aliphatic compounds can either be linear or cyclic.

The Carbon atoms that take part in the formation of aliphatic compounds can have a mix of single, double or triple bonds between them.

This means that they can be saturated or unsaturated. The TERM ‘saturated’ refers to the completion of bonding around Carbon atoms by H atoms, where the Carbons atoms are only bound through single bonds.

Whenever there is a double or triple bond between the Carbon atoms, it cannot fulfil its bonding with H atoms as the bonding space has already been taken by the neighbouring Carbon atom, and these are called ‘unsaturated’ compounds.

Linear aliphatic compounds are often not planar in structure, and only some cyclic aliphatic compounds are planar in nature. In general, the linear aliphatic compounds are more STABLE and freely available than the cyclic aliphatic compounds.

The reason for this is the high ring strain present in the cyclic aliphatic compounds.

Halogens are the most common type of foreign group of elements that form side chains and side groups with aliphatic compounds. It is often easier to subject aliphatic compounds to a chemical reaction than the aromatic compounds.

EXPLANATION:

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Explanation:

Give the two chemical REACTIONS of ALKYL halidesAlkyl halides can undergo two major types of reactions - SUBSTITUTION and/or elimination. ... The elimination of a beta-hydrogen (hydrogen on a carbon vicinal to the alkyl halidecarbon) and the halide produces a carbon-carbon DOUBLE bond to FORM an alkene.

Explanation:

To calculate the standard DEVIATION for a sample of N measurements:

Sum all the measurements and divide by N to get the average, or mean.

Now, subtract this average from each of the N measurements to OBTAIN N "DEVIATIONS".

Square each of these N deviations and ADD them all up.

Divide this result by. (N − 1)

ANSWER:

GROUP 2 and 3 are the RIGHT answer.....

welcome to the CONCEPT of emf

in this question concentration is ALSO GIVEN so we use nerset equation .

E ° cell = 0.736-0.1236 = 0.61

Q= 10^-1 and n =2

now by nernst equation

E cell = 0.64

When sugar and common salt are kept in different jars, they take the shape of the jars, still they are considered as solid .

REASON:

--->As, solids are rigid form of matter and have  FIXED  shape and VOLUME.

---->even though , common salt and sugar crystals when poured in any container, they take the shape of container, still each granule of common salt and sugar retain their fixed shape and volume .

Conclusion:

Hence they are considered as Solids. 

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ANSWER:

it will not REACT and BECOME PINK

Answer:

HOLLA!!       HOW ARE U?? HOPE FINE

Explanation:

                 HERE IS UR ANSWER MATE

When water is then added to the anhydrous compound, it turns back into the pentahydrate FORM, regaining its blue color, and is known as blue vitriol. ... For EXAMPLE, in a zinc/copper cell, copper ion in copper sulfate solution absorbs ELECTRON from zinc and forms metallic copper.

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Answer: I THINK this gas is natural gas and petroleum is transferred with it to AVOID the LATENT HEAT of the evaporation

Explanation:

Answer:

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ANSWER:

FOOD ismkept for a long time without PROTECTION

ANSWER:

Here is your ANS STEP by step into the ATTACHMENT.

Explanation:

Pages in category "Government welfare schemes in Telangana"

The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes (LEARN more).

A

Aarogya Lakshmi scheme

Aasara pension

Amma ODI & KCR Kit

D

Double Bedroom HOUSING scheme

K

Kalyana Lakshmi - Shaadi Mubarak

M

Mission Bhagiratha

R

Rythu Bandhu scheme

T

Telangana Ku Haritha Hāram

Telangana Sheep Distribution scheme

ANSWER:

There is no NEED of any of US for the

Answer:

In a unit cell, an atom's coordination NUMBER is the number of ATOMS it is TOUCHING.

The hexagonal CLOSEST packed (hcp) has a coordination number of 12 and contains 6 atoms PER unit cell.

★ FORMATION OF CATION :-

• Low IONISATION ENERGY of cation
• Low charge on the ION
• Large atomic SIZE
• Cations with inert gas configuration

★ FORMATION OF ANION :-

• High electron affinity
• Low charge on the anion
• High electron affinity
• Small size of the anion
• Anions with inert gas configuration

ANIONS :-

Anions are negatively charged particles . When an neutral atom gains electrons in order to acquire stability the resulting ion formed is CALLED anion

CATIONS :-

Cations are positively charged particles . When a neutral atom loses electrons to acquire stability the resulting ion formed is called cation

HTTPS://cbse/important-questions-class-10-maths-chapter-1

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ANSWER:

BRO EVEN i am READING this TOPIC

Answer:

we can reduce the disadvantages of chemicals in our daily LIFE by:

Knowing the KNOWLEDGE of the chemical you are using.

Using chemical products under SUPERVISION of elders.

Keeping such elements away which are REACTIVE at room temperature.

ANSWER:

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Explanation:

Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine TOGETHER releasing vast amounts of ENERGY. ... Research continues into ways to better harness the power of fusion, but research is in EXPERIMENTAL stages.

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ANSWER:

here is your answer in the ATTACHMENT

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ANSWER:

no, during DISCOVERY of PROTONS it was PERFORATED

ANSWER:

MATTER is having SPACE between it.

Matter is ALWAYS MOVING.

ANSWER:

MOLAR MASS 28.01 g/mol

Explanation:

Answer: perforated

Explanation :In 1886 Goldstein discovered EXISTENCE of positively CHARGED rays in the discharge TUBE by USING perforated cathode

When a metal is placed in a solution of its IONS, the metal acquires either a positive or negative charge with RESPECT to the solution. On ACCOUNT of this, a definite potential difference is developed between the metal and the solution. This potential difference is called electrode potential.

The solute particles displace some solvent molecules in the liquid phase and THEREFORE REDUCE the CONCENTRATION of solvent, so that the COLLIGATIVE properties are independent of the nature of the solute.Colligative properties include: Relative lowering of VAPOUR pressure. Elevation of boiling point.

============

⭐⭐⭐⭐⭐⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ❤❤❤⭐⭐⭐⭐

The greenhouse EFFECT is the process by which radiation from a PLANET's atmosphere WARMS the planet's surface to a temperature above what it would be without its atmosphere. If a planet's atmosphere contains radiatively ACTIVE gases (i.e., greenhouse gases) they will radiate energy in all directions.⤵⤵⤵⤵

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ANSWER:

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EXPLANATION:

In chemistry, VOLATILITY is a material quality which describes how readily a substance VAPORIZES. At a given temperature and pressure, a substance with HIGH volatility is more likely to exist as a VAPOR, while a substance with low volatility is more likely to be a liquid or solid

Answer:

PHYSICAL properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Physical properties include: appearance, TEXTURE, color, odor, melting POINT, boiling point, density, SOLUBILITY, polarity, and many others.

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Answer:

Goldstein used a gas-discharge tube which had a perforated CATHODE. When a high ELECTRICAL potential of several thousand volts is applied between the cathode and ANODE, FAINT luminous "rays" are seen extending from the holes in the back of the cathode.

ANSWER:

HEYA mate here is your answer....❤❤

modern perodic table was given by Henry MOSLEY in which the elements were arranged according to the form of atomic no.

perodicity means recurrence of the similar electronic configuration I.e. having similar no of ELECTRONS in the outermost orbit.

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Answer:

Option d

EXPLANATION:

Rearrangement take place SECONDARY CARBOCATION is formed

ANSWER:

Explanation:

INDICATORS

===========

An indicator is a substance that changes its colour in ACIDIC and BASIC medium.An indicator shows one colour in acidic medium and different colour in basic medium so that they are called indicators.

eg:-Litmus , turmeric

ANSWER:

LEAD as it's a BAD CONDUCTOR of CURRENT

ANSWER:

c.cccccccccccccccccçccçccccccccc

<P>Answer:

Answer

Let the ORIGINAL volume (V)=1 and

the original pressure (P)=1 and

the temperature given (T)=−15

∘

C=−15+273=258K

V

1

or new volume after heating = original volume +50% of original volume

1+1×

100

50

=1+

2

1

=

2

3

Here P

1

is the decreased pressure

P

1

=60%

=

100

1×60

=0.6

T1=?

T

PV

=

T

1

P

1

V

1

258

1×1

=

2

3

×

T

1

0.6

T

1

=232.2K

T

1

=232.2−273

=−40.8 °c

d) CCL3COOH is the most strong 'weak' ACID among all. The others are weak ACIDS.