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Answer:

(a) The various ways in which a CHEMICAL equation can be made more INFORMATIVE are : (i) By indicating the physical states of the reactants and products. Example: Gaseous state is indicated by the symbol (g). (II) By indicating the heat CHANGES taking place in the REACTION.

Brainliest

Balanced chemical equation: A chemical equation in which the number of atoms of reactants are equal to the number of atoms of PRODUCTS is called a balanced equation.

We need to balance a SKELETAL chemical equation because:

i. ACCORDING to the law of conservation of mass, mass (or atoms) are NEITHER created nor destroyed in chemical reactions.

ii. It means the TOTAL mass of the products formed in chemical reaction must be equal to the mass of reactants consumed

Explanation:

What Is the CASH Conversion Cycle (CCC)?

The cash conversion cycle (CCC) is a metric that expresses the time (measured in days) it takes for a company to convert its investments in inventory and other resources into cash FLOWS from sales. Also called the Net Operating Cycle or simply Cash Cycle, CCC attempts to MEASURE how long each net input dollar is tied up in the production and sales process before it gets CONVERTED into cash received.

This metric takes into account how much time the company needs to sell its inventory, how much time it takes to collect receivables, and how much time it has to pay its bills.

<P>Explanation:

x² + 7x + 10 is the required POLYNOMIAL.

Explanation :

According to the Question

It is given that α and β are the zeroes of a polynomial .

SUM of ZEROS (α+β) = -7

Product of Zeros (αβ) = 10

we need to calculate the polynomial.

As we know that if the sum of zeros and product of zeros are given we can easily calculate the polynomial .

Let the Polynomial be P(x)

• P(x) = x²-(sum of zeros)x + (product of zeros)

Substitute the value we get

➻ P(x) = x²-(-7)x + (10)

➻ P(x) = x²+7x+10

So, the required polynomial is x² + 7x + 10.

Answer:

x² + 7x + 10 is the required POLYNOMIAL.

Explanation :

According to the Question

It is given that α and β are the zeroes of a polynomial .

Sum of zeros (α+β) = -7

Product of Zeros (αβ) = 10

we NEED to CALCULATE the polynomial.

As we KNOW that if the sum of zeros and product of zeros are given we can easily calculate the polynomial .

Let the Polynomial be P(x)

• P(x) = x²-(sum of zeros)x + (product of

Answer:

460.458KJ/MOL

Explanation:

The energy of a photon = hv=hc/ f

given wavelength = 260nm

changing nm to m becomes 260 x 10^-9m

remembering that frequency = speed of light(C)/ f wavelength

= 3 x10^8 / 260 x10^-9 = 1.15 x 10^15 s-1

frequency (V) = 1.15 x 10^15 s-1

Energy = hv

where h is planks CONSTANT = 6.626 X 10^-34 J-s

v is frequency = 1.1538 x 10^15s-1

E= 6.626X 10^-34 J-s X 1.15 x 10^15s-1

=7.645X 10^-19 joules

But I mole = 6.023 X10^23

therefore Energy = 7.645X 10^-19 x 6.023

X 10^23 =460,458.35Joules / mole

460,458.35Joules / mole To kilojoules/ mol = 460,458.35Joules / mole/1000= 460.458KJ/mol

ANSWER:

NAHI AATA answer MUJHE... XD

Answer:

A carboxylic acid is an organic compound that has a CARBOXYL group. The carboxyl group is a FUNCTIONAL group that contains a CARBON–oxygen double bond and an OH group also attached to the same carbon atom, but it has characteristic PROPERTIES of its own.

ANSWER:

utxtux6tdrd7d7tdt7d7dutxtxurx6rz6rz6r

ANSWER:

good night guys so choose its REAL

Explanation:

who born on SEPTEMBER October and NOVEMBER

The major difference is the INCREASING number of protons in the nucleus as you go from lithium to neon. That causes greater attraction between the nucleus and the electrons and so INCREASES the IONIZATION ENERGIES. In fact the increasing nuclear charge also drags the outer electrons in CLOSER to the nucleus.

Answer:

Aldehydes and ketones have a much higher boiling point than the alkanes. This is attributed to the dipole moment of the carbonyl GROUP. ... The reason for this is that the non-POLAR REGION of the carbon CHAIN is getting larger as the polar region (C=O) is staying the same.

Keep LEARNING

ANSWER:

(C) LAW of MASS ACTION. is answer

ANSWER:

One MOLE of H

2

, 2 moles of I

2

and 3 moles of HI are injected in a one litre flask.

x moles of H

2

will react with x moles of I

2

to form 2X moles of

HI. Total number of moles of HI present at equilibrium will be 3+2x

1−x moles of H

2

and 2−x moles

of I

2

will remain at equilibrium.

The equilibrium constant K

c

=

[H

2

][I

2

]

[HI]

2

45.9=

[

1 L

1-x mol

][

1 L

1-x mol

]

[

1 L

3+2x mol

]

2

45.9=

[1−x][2−x]

[3+2x]

2

45.9(1[2−x]−x[2−x])=3[3+2x]+2x[3+2x]

45.9(2−x−2x+x

2

)=9+6x+6x+4x

2

91.8−137.7x+45.9x

2

=9+12x+4x

2

41.9x

2

−149.7x+82.8=0

This is quadratic equation with solution

x=

2a

−b±

b

2

−4ac

x=

2(41.9)

−(−149.7)±

(−149.7)

2

−4(41.9)(82.8)

x=

83.8

149.7±92.4

x=

83.8

149.7±92.4

x=2.88 or x=0.684

The value x=2.88 is discarded as it will lead to negative

value of number of moles.

Hence, x=0.684

The equilibrium concentrations are

[HI]=3+2x=3+2(0.684)=4.368 mol/L

[H

2

]=1−x=1−0.684=0.316 mol/L

[I

2

]=2−x=2−0.684=1.316 mol/L

Explanation:

i think this is correct answer

ANSWER:

Don't KNOW PLEASE GOGLE if you WANT

Answer:

The Law of conservation of mass states that matter can be changed from ONE form into another, mixtures can be separated or made, and pure substances can be decomposed, but the total amount of mass remains constant. We can STATE this IMPORTANT law in another way. The total mass of the universe is constant within measurable LIMITS; whenever matter undergoes a change, the total mass of the products of the change is, within measurable limits, the same as the total mass of the reactants. According to law of conservation of mass, the mass of products in a reaction must be equal to mass of reactants so the BALANCING of equations is done to obey this law.

ANSWER:

WRITE your FULL QUESTIONS so you can GET the answer

Answer:

pH of A WOULD be more than 7 and upto 14 pH of B would be less than 7 upto 1

Explanation:

Metallic OXIDES are Basic in NATURE and Non metallic oxides are Acidic in nature.

Answer:

The answer is

Explanation:

Pythagoras' theorem states that for all right-angled triangles, 'The square on the HYPOTENUSE is EQUAL to the sum of the squares on the other TWO sides'.

I HOPE it's helpful for you.

ANSWER:

just LEARN after 25 MINUTES again and again

Cu and HG SHOWS self reduction in Metallurgy process

Explanation:

Copper, lead and MERCURY are all less electropositive metals and so they can be extracted by self-reduction from their respective sulphide ores. -In the extraction of copper from its sulphide ore, the ore is SUBJECTED to partial roasting in air to form its oxide.

Answer:

On heating, ferrous SULPHATE crystals lose water and anhydrous ferrous sulphate (FeSO4) is formed. So their colour changes from LIGHT green to white. On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3).

Answer:

The Shape Is Not GIVEN DEAR :(

Explanation:

Green REVOLUTION, great INCREASE in production of food grains (especially wheat and rice) that resulted in large PART from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent.

ANSWER:

Reaction temperatures are in the range 10–35 °C. The polymer is RECOVERED ... In the beginning, the YIELD of bio-oil will quickly increase to a MAXIMUM with the rise in reaction TEMPERATURE.

2AL+ 3H2O=Al2O3 + 3H2 .

Hope it will HELP you .

Your INTRO friend ?

Can we be friends ?

Plz reply your intro .

Mark as BRAINLIEST answer .

Thank you .

ANSWER:

because it is TRANSPARENT to SEE the SOLUTION

Answer: Pls MARK me as a brainliest friend pls

EXPLANATION:

A) false. When displacement reaches to the position initial position, it can be zero.

B) false. Generally, the shortest DISTANCE covered is called the displacement and it’s value will always be SHORTER than the distance.

Hope it’s useful friend…

Good luck and have a great day buddy…

Keep rocking !!

1) Evaporation happens when a liquid turns into a gas. It can be easily visualized when rain puddles “DISAPPEAR” on a hot day or when wet clothes dry in the sun. In these examples, the liquid water is not actually vanishing it is evaporating into a gas, called water vapor. Evaporation happens on a global scale.They transfer energy to each other as the molecules of the liquid COLLIDE, depending on how they collide with each other.

2) The particle THEORY of matter is: A scientific model of the structure of matter; according to the particle theory, all matter is made up of extremely tiny particles, and each pure substance has its own kind of particle, different from the particles from any other pure substance.The particle theory of matter is a model that describes the arrangement and movement of particles in a substance. The model is used to EXPLAIN the physical properties of solids, LIQUIDS and gases.

hope it was helpful to you

Answer:

1. Water is known to exist in three different states, as a solid, liquid and gas. A cloud is comprised of ice crystals as solid or tiny water droplets as liquid. Water existing as a gas is called water vapor. ... Clouds, snow and rain are different forms of water.
2. Water is a compound. It CONTAINS more than one element: hydrogen and oxygen ATOMS are joined together; as ILLUSTRATED in the video clip Elements and Compounds, above. An IMPORTANT feature of compounds is that they are very different from the elements from which they are made
3. The temperature in Mumbai and Chennai do not fall as low as in Delhi because these cities are situated in the coastal areas. DUE to high specific heat capacity, the presence of a large amount of water is able to modify the climate of the nearby land areas making them warmer in winter and cooler in summer

Explanation:

hope it helps you

Answer:

We have studied about of the measure of concentration like Molarity, Mole Fraction,Molality.We are going to see another measure of concentration CALLED Normality. Normality is DEFINED as the number of GRAM EQUIVALENT present in per litre solution. It is used for acid or base solution

Normality Formula

where N = number of H+ in Acid , OH- in base and for salt,charge present in ionic forms

Equivalent Weight is new thing in the formula.

Explanation:

PLEASE MARK ME AS THE BRAINLIEST!!!

Answer:

WATER molecules forming an essential PART of the CRYSTAL structure of some compounds.

Weight of S =6.4 g

Atomic weight of S =32 g/g atom

Number of GRAM ATOMS of S =

32 g/gatom

6.4 g

=0.2 gram atoms.

The AVOGADRO's number is 6.023×10 ²³atoms/ g atom

The number of atoms of S =0.2 gram atoms ×6.023×10²³atoms/ g atom

=1.2×10²³ atoms.

I hope you GOT your ANSWER.

◉‿◉

EXPLANATION:

The pure SOLVENT solution will try to maintain higher vapour pressure in the sealed container and in return the solvent vapour molecules will condense in the solution of non-VOLATILE solute as it MAINTAINS an equilibrium with lower vapour pressure. (Lowering of vapour pressure is observed when a non volatile solute is mixed in a volatile solvent)  This will eventually lead to INCREASE in the volume of solution and decrease in the volume of solvent.Read more on Sarthaks.com - https://www.sarthaks.com/580434/open-beakers-containing-solvent-other-containing-mixture-that-solvent-volatile-solute

ANSWER:

ALKALI METALS is the CORRECT answer..

Explanation:

The oxidation number of Ni in both the compounds is- x-4=-2 →x=2

K

2

[Ni(CN)

4

]- potassium tetracyanonickelate(II)

K

2

[Ni(Cl)

4

]- potassiumtetrachloronickelate(II)

answer by ❤️ ☞ Meera

ANSWER:

SORRY i did't GET what are you TAKLING in the QUESTION

ANSWER:

भौतिक साधने :- इतिहासाच्या लिखित साधनांनंतर आपण आता भौतिक साधनाची माहिती घेऊ. नाणी, प्रार्थना स्थळे, दैनंदिन वापरातील वस्तू, राजमुद्रा, अलंकार, संग्रहालय, पेहराव, आधुनिक स्थापत्य या सर्व साधनांचा समावेश भौतिक साधनांत होतो. या साधनांशिवाय स्तंभ, विहार, स्तूप, नगरे, कोरीव काम, लेणी यांचाही भौतिक साधनांमध्ये समावेश होतो.

ANSWER:

copper oxide is REDUCED and hydrogen is oxidized

copper oxide is OXIDISING agent and hydrogen is REDUCING agent

ANSWER:

hi

Explanation:

1 ,MOLECULE of glucose contains 6 atoms of C, 12 atoms of H, and 6 atoms of O • 1 mole of glucose contains 6 moles of C atoms, 12 moles of H atoms, and 6 moles of O atoms. 10 moles of glucose contains 60 moles of C, 120 moles of H, and 60 moles of O atoms

Answer:

option ( a )

Nature of electrolyte: The CONDUCTANCE of an electrolyte depends upon the NUMBER of ions present in the solution. Therefore, the greater the number of ions in the solution the greater is the conductance. The number of ions produced by an electrolyte depends upon its nature.

Explanation:

SN1 REACTION

SN1 reaction involves the formation of carbocation intermediate. More the stability of carbocation more is the reactivity of alkyl/aryl halides towards SN1 reaction. THUS, C6H5C(CH3)(C6H5)BR is most reactive towards SN1 reaction.

ANSWER:

sp has the MAXIMUM bond angle

Explanation:

please MARK as brainliest n THANK me

EXPLANATION :-

The hybridisation of carbon atom in carboxyl GROUP is SP2 - hybridised.

Answer:

A substitution reaction (also known as single DISPLACEMENT reaction or single substitution reaction) is a chemical reaction during which ONE functional GROUP in a chemical compound is replaced by another functional group. ... A good example of a substitution reaction is halogenation.

2,3 DIMETHYL PENT 1-ene-4-yne

ANSWER:

c.

Explanation:

2AgNO3+ H2 → 2HNO3 + 2AG

Answer:

ans is 60

Explanation:

The MALARITY is 10% aqueous and if mass density of the acid is 1.2g but can solve this sum

18 )1.2( 60

108

_

the reminder is 8

Answer:

ECOFRIENDLY...with out causing the DEATH of other organismss....2.enhanching the quality of SOIL .3.for promiting growth of PLANTS 4.should be EASILY usable

Answer:

Positive catalyst: A catalyst which increases the RATE of reaction is called positive catalyst. Such catalyst decreases ACTIVATION energy by ACCEPTING a smaller path, so rate of reaction is INCREASED

Explanation:

248 249 9234. p12345

g

I

r

l

s

w

h

o

r

r

e

a

d

y

t

o

s

h

o

w

b

o

o

b

s

a

n

d

p

u

s

s

y

j

o

i

n

f

a

s

t

ANSWER:

Acetaldehyde is PRIMARILY USED to produce other chemicals, INCLUDING acetic acid and disinfectants, drugs and perfumes.

Explanation:

ᴘʟᴇᴀsᴇ ᴍᴀʀᴋ ᴀs ʙʀᴀɪɴʟɪsᴛ

ʜᴀᴠᴇ ᴀ ɢʀᴇᴀᴛ ᴅᴀʏ