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SILK is a thin, but STRONG fiber that silkworms PRODUCE when they are MAKING their cocoons. It can be woven into a very soft and smooth fabric. Silk fabric was invented in ANCIENT China and played an important role in their culture and economy for thousands of years.

PLEASE SEE only 20 ELEMENTS

ANSWER:

FIRST order

N = 1

where n is the Orderof the REACTION.

ANSWER:

A SOLID....

EXPLANATION:

Answer:

sodium CARBONATE is a salt of weak acid H₂CO₃ and strongbase NAOH. When it is dissolved in water, it undergoes anionic hydrolysis.Thus salt solution contains OH- ions. Hence AQUEOUS solution of sodium carbonate is basic in NATURE

Answer:

The Revised International Prognostic Scoring System (IPSS-R) was developed to RISK stratify untreated patients (pts) with myelodysplastic syndromes (MDS). ... Recently, GENOME sequencing TECHNOLOGIES have identified recurrent somatic mutations that IMPACT SURVIVAL in MDS

ANSWER:

POSITIVE DEVIATION by RAULTS LAW

ANSWER:

On heating a material its TOUGHNESS will decrease.

Explanation:

This is because on heating several bonds BREAK and this reduces the toughness of the material.

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ANSWER:We can use naphthalene BALLS in the boxes of winter clothes to KEEP AWAY insects silver FISH mould.

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ANSWER:

The ELECTRON CONFIGURATION of  

Co

3

+

is  

[

AR

]

4

s

3

d

5

.

Explanation:

Answer:

N- 2,5

valency= 3

O- 2,6

valency= 2

OXIDATION state of N is +2

Oxidation state of O is -3

Answer

Biomass is biological material obtained from LIVING or recently living organisms that can be processed into electricity, fuel and heat. Biomass has been used for thousands of years and there are many forms available which are used in a number of ways. For example, in a wood fire the wood that is burning is a biomass fuel. Biomass is also used in building materials, composting and as in Drax’s case in the electricity industry. The materials that Drax use include sustainable wood-based products, forestry residues and residual agricultural products, such as sunflower seed husks and peanut husks. Principle: BIOGAS is produced as a result of ANAEROBIC fermentation of biomass in the presence of water. Construction Back to Top The biogas plant is a brick and cement structure having the following five sections: Mixing tank present above the ground level. Inlet chamber: The mixing tank opens underground into a sloping inlet chamber. Digester: The inlet chamber opens from below into the digester which is a huge tank with a dome like ceiling. The ceiling of the digester has an outlet with a valve for the supply of biogas. Outlet chamber: The digester opens from below into an outlet chamber. Overflow tank: The outlet chamber opens from the top into a SMALL over flow tank. Fixed Dome type Biogas Plant Working Back to Top The various forms of biomass are mixed with an equal quantity of water in the mixing tank. This forms the slurry. The slurry is fed into the digester through the inlet chamber. When the digester is partially filled with the slurry, the introduction of slurry is stopped and the plant is left unused for about two months. During these two months, anaerobic bacteria present in the slurry decomposes or ferments the biomass in the presence of water. As a result of anaerobic fermentation, biogas is formed, which starts collecting in the dome of the digester. As more and more biogas starts collecting, the pressure EXERTED by the biogas forces the spent slurry into the outlet chamber. From the outlet chamber, the spent slurry overflows into the overflow tank. The spent slurry is manually removed from the overflow tank and used as manure for plants. The gas valve connected to a system of pipelines is opened when a supply of biogas is required. To obtain a continuous supply of biogas, a functioning plant can be fed continuously with the prepared slurry.Read more on Sarthaks.com - https://www.sarthaks.com/4000/what-biomass-explain-principle-and-working-biogas-plant-using-labelled-schematic-diagram

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ANSWER:

ELEMENT SYMBOL MASS Percent

Aluminium ( Al ) 15.772%

15.772%Oxygen ( O ) 56.113%

56.113%SULFUR ( S ) 28.115%

Answer:

FE +2 also in ACIDIC FORM

Hi there,

◇ Given

● H percentage is 4.07

● H atomic mass is 1

● C percentage is 24.27

● C atomic mass is 12

● Cl percentage is 71.65

● Cl atomic mass is 35.5

◇ Empirical formula calculation

1- FIND MOLES of each element by dividing percentage over atomic mass so,

n(H) = 4.07÷1 = 4.07 MOL

n(C) = 24.27÷ 12 = 2.02

n(Cl) = 71.65 ÷ 35.5 = 2.02

2- Find mol ratio by dividing over the lowest value

H ratio 2

C ratio 1

Cl ratio 1

So,

☆ The empirical formula is

《 CH2Cl》

◇ Molecular formula calculation

Find the molar mass of empirical

12 + 2 + 35.5 = 49.5

The molar mass of moleculare is 98.96

So the coefficent

98.96 ÷ 49.5 = 2

So, the moleculare formula is

《 C2H4Cl2 》

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ANSWER:

There resistivities will be same as LONG as their temperature is same.

Resistivities DEPEND UPON two factors i.e. temperature and no. of free ELECTRON( type of material).

ANSWER:

VARIOUS COMPONENTS of AIR are-

co2

o2

nitrogen

dust particles

water vapours

etc...

Explanation:

chemical formula is a way of PRESENTING information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical ELEMENT SYMBOLS, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and PLUS (+) and minus (−) SIGNS.

Explanation:

The process of chemical decomposition of the electrolyte by the passage of electricity through its molten or dissolved state is termed as electrolysis. It is the chemical change (Redox reaction occurring at electrode on passing current). The device in which this process is CARRIED out is called electrolytic cell.

In this process first of all electrolyte is ionised. The cations deposit on cathode where reduction takes place. The anions deposit on anode where oxidation takes place. The conversion of ions in the neutral particles at the RESPECTIVE electrodes is referred to as primary change. The PRODUCT obtained on primary change may be collected as such or may undergo secondary change to form FINAL products. The REACTIONS taking place in these changes are called electrochemical reactions.

ANSWER:-

1. Wound Disinfectant -

People began using tincture of iodine as a wound disinfectant in the late 1800s. Although not as popular TODAY, it is still in USE as an antiseptic to prevent infection in minor cuts, scrapes and burns. Tincture of iodine is suitable for topical use only and can be irritating to your skin. You should not use tincture of iodine on open wounds or if you are allergic to seafood.

2. Diagnostics -

Your thyroid gland requires iodine to function correctly. If you or your doctor suspect iodine deficiency is causing your thyroid to function incorrectly, you can use tincture of iodine to perform a diagnostic test. To perform this test, you apply tincture of iodine to your skin in a three-inch patch and monitor the spot for 24 hours. Watch to see how long it takes the brown iodine stain on your skin to disappear and when it does, reapply the tincture of iodine. If you have adequate iodine in your system, you will not need to reapply tincture of iodine at all. If the stain disappears and you must reapply within the 24-hour monitoring period, the more often you do, the more your body is iodine DEFICIENT.

Answer

Jute PLANT is KEPT immersed in WATER for few days so that it is easier to REMOVE the fibre from the STEM and the fibre is obtained from the stem.

Answer:

about 62 millions of WASTE is GENERATED in a DAY in India

Answer:

4 as only ATOM of H DECREASES but VALENCY REMAINS the same

Answer:

REDUCING Carbon emissions, METHANE from underwater SWAMP. Also third green house gas LIKE NO should be reduced

ANSWER:

bleaching powder react to water to form calcium HYDROXIDE and CA(OH)2 also called SLAKED lime and hypochlorous acid

ANSWER:

METAL COMPLEX are FORMED

Answer:

First, write down the equation and OBSERVE it (I'll take an easy example to understand):

H2 + O2 --> H2O

Then, write down the number of molecules of the L.H.S. and R.H.S. separately

L.H.S. R.H.S.

H = 2 H = 2

O = 2 O = 1

As you can see, the number of molecules are not equal on the both sides of the equation. So, we MULTIPLY the molecules on either SIDE to make their numbers equal.

L.H.S.  R.H.S.

H = 2 x 2 = 4 H = 2 x 2 =4

O = 2  O = 1 x 2 = 2

Notice that if the MOLECULE is in a compound, you have to multiply all the molecules of that compound with the same number.

If there are, sometimes, two molecules of the same element, one in a compound and other one distinct as alone. For ex sometimes you will see hydrogen both in a compound and as an element alone on one side of the equation. To solve this, take the sum of number of molecules present in the elements/compounds and multiply accordingly.

(NOTE: If you multiply the element molecule, it is not NECESSARY that the molecules of that in with the compound form should be multiplied)

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Explanation:

Heated copper metal reacts with oxygen to form the BLACK copper oxide. The copper oxide can then react with the hydrogen gas to form the copper metal and water. When the funnel is REMOVED from the hydrogen STREAM, the copper was still be warm enough to be oxidized by the AIR again.

Answer:

SORRY to say !

But can you please GIVE the IMAGE of Question ?

Answer:

DICHROMATE is an oxidising agent in organic chemistry, and is milder than POTASSIUM PERMANGANATE. It is USED to oxidize ALCOHOLS. It converts primary

ANSWER:

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sorry BRO I have not LEARNED this TOPIC completely so I can't help.

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.

ANSWER:

a) C+4HNO3= CO2+4NO2+2H2O

b)Sn+2PCl5=SnCl4+2PCl3

Explanation:

as PER octet rule it has to achive a stable CONFIGURATION ie by loosing 3 electorns .....Al 1+ is achied but in certian COMPOUNDS

Answer:

All matter exists as solids, liquids, or gases. These are called the STATES of matter. Matter can change from ONE STATE to another if heated or cooled. If ice (a solid) is heated it changes to WATER (a liquid).

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Metals are important ingredients in LIFE, just as the organic molecules. For instance, the divalent magnesium and calcium ions play important regulatory roles in cells. Metallothionins are PROTEINS rich in METAL ions found in LIVING systems.

Answer:

one which have TAPROOTS in most cases is dicot

Explanation:

moreover U can check for leaves EITHER having reticulate or PARALLEL venation

1. parallel is in monocots

welcome to the CONCEPT of EMF .

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otherwise REPORT it

ANSWER:

NITROBENZENE does not UNDERGO ALKYLATION!

EXPLANATION:

it is the ATOMIC MODEL of OXYGEN

Answer:

except polythene all are condensation

Explanation:

no WATER MOLECULE or any molecule is released during POLYMERIZATION of ETHENE

ANSWER:

So that CHIPS can not damage

Explanation:

Answer:

Here is your answer friend

phosphoric ACID is a weak acid with the chemical FORMULA H3PO4

ANSWER:

this is a answer of question

add me to BRAINLIST answer

ANSWER:

glass is MADE from sand

when glass is heated it SHOWS thinning

but it is very leess

example.. WINDOW panes of old buildings

ANSWER:

NON metals are having more molecular space as non metals are mainly gases and liquids having high INTER molecular space between it's molecules

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ANSWER:

carburising FLAME is the answer for the QUESTION

EXPLANATION:

(+1)+X+4(-2)=0

X=8-1

X=7

ANSWER:

fat is the amount of #charbi present in our BODY and CHOLESTEROL HELPS in making fat