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Answer:

21 percent

It's a mixture of DIFFERENT GASES. The AIR in Earth's atmosphere is made up of APPROXIMATELY 78 percent nitrogen and 21 percent oxygen.

ANSWER:

NAME of ATOM : Sulphur

Symbol : S

Atomic NUMBER : 16

Mass number : 32

Answer:

Sublimation is the transition of a substance directly from the solid to the gas STATE, without passing through the LIQUID state.

ANSWER:

SAVING FOOD is the CORRECT answer.

ANSWER:

Rutherford's atomic model is the model which described the atom as a tiny, dense, positively charged CORE called a nucleus, in which nearly all the mass is concentrated, AROUND which the light, negative constituents, called electrons, circulate at some distance, much LIKE planets revolving around the Sun. THNKU harsha and alok

ANSWER:

EXPLANATION:

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ANSWER:

Nali is a breed of sheep that is MAINLY found in Rajasthan, PUNJAB, and Haryana. The WOOL obtained from this breed of sheep is mainly USED for making carpets.

Bakharwal is a breed of sheep that is mainly found in Jammu and Kashmir. The wool obtained from this breed of sheep is mainly used for making shawls.

Explanation:

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Answer:

powder

Explanation:

Differences Between PLANT Cell and Animal Cell

Plant Cell Animal Cell

Square or rectangular in shape Irregular or round in shape

Cell Wall

Present AbsentPhysical QUANTITIES specified completely by GIVING a number of units (magnitude) and a direction are called vector quantities. Examples of vector quantities INCLUDE displacement, velocity, position, force, and TORQUE.

ANSWER:

) 25.28% and 94.72%

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ANSWER:

bone

Explanation:

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MALLEABLE means can be drawn down into THIN SHEETS which is the property of a metal

Answer:

The latent heat of fusion is the heat REQUIRED to change the solid from solid to liquid state without any change in temperature. The latent heat of fusion of ice is 336000 J/kg. While Latent heat of vaporization is the heat required to change the liquid from liquid to vapor state without any change in temperature .

Explanation:

The latent heat is one that “feels” as it represents the thermal energy is released or absorbed during a phase change, without increasing or decreasing the temperature of the thermodynamic system. There are several types of latent heat, which are governed by the phase changes of a substance.

The heat energy required to change a unit mass of a substance from liquid to a gaseous state at its boiling POINT without a change in its temperature is called the latent heat of vaporization. It is represented by H v. Its S.I unit is J/kg. Its formula is given as:

Hv = ΔQv/m

Example of latent heat of vaporization

When water is heated, it BOILS at 100 °C under STANDARD pressure. Its temperature remains 100 °C until it is changed completely into steam. Its latent heat of vaporization is 2260000 J/kg. That is one kilogram of water requires 2260000 Joule heat to change it completely into steam at its boiling point .

ANSWER:

YES mostlymeasuring CYLINDER is a GAS cylinder

Public ADMINISTRATION is spread across the birth and death of an INDIVIDUAL: ... Employment: An individual can ENTER into the Union Public Service COMMISSION or State Public Commission or any other government departments by giving TESTS. 4.

Answer:

Q7. Egestion

Q8. SHEARING.

Explanation:

Check the DEFINITIONS of the above ACTIVITIES. These are factual answers so explanation is not needed.

Egestion: The process by which undigested food is eliminated from the body in form of FAECES is called egestion.

Shearing: Shearing is the process by which the woollen fleece of a sheep is cut to obtain wool.

ANSWER:

SOLIDS have INFINITE FREE SURFACE

ANSWER:

kydykfyofykfyd65w53

Explanation:

• 636
• 6302
• 8392
• 9292
• 8w29

Answer:

Focx is NOTHING it is DOCUMENT or USED in MS words

ANSWER:

FILTRATION or decantation

Explanation:

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The state of WATER at \(370K\) will be liquid.

Water will be in liquid and GASEOUS FORM at 108° celcius.

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ANSWER:

Five non-metals are solids at ROOM TEMPERATURE: iodine, carbon, PHOSPHOROUS, sulfur and selenium. One non-metal is a LIQUID. The other 11 non-metals exist as gases at room temperature.

Answer:

2 ONE is the INCORRECT sattement

Answer:

When sodium carbonate CRYSTALS are exposed to AIR They LOSE WATER of crystallization and turn to white POWDER. This process of loosing water of crystallization when exposed to air is called efflorescence. When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder.

ANSWER:

SODIUM is a highly REACTIVE metal from group one. Hydrogen gas is evolved in the reaction which is COMBUSTIBLE in NATURE.

Precious metals are the standard CATALYST MATERIAL used for extracting hydrogen from water. The problem is these materials -- such as platinum, ruthenium and iridium -- are too COSTLY. ... Hydrogen can be used for EXAMPLE to reduce carbon dioxide from steel production or to produce diesel and AIRCRAFT fuel.

EXPLANATION:

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ANSWER:

PLZ PUT the QUESTION PROPERLY

ANSWER:

QUESTION:State a reason for representing the following elements by their symbols.

SOLUTION: The short form or ABBREVIATED name of an element or radical is the SYMBOL of an element.

EXPLANATION:

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Explanation:

When an electric CURRENT is passed through concentrated sodium CHLORIDE SOLUTION, hydrogen gas forms at the negative electrode , chlorine gas forms at the POSITIVE electrode, and a solution of sodium hydroxide ALSO forms.

Answer:

5odjdjupypitsbfmuhlgfmndsugoh.dgaya

ANSWER:

As we know,

i=NumberofformulaunitsinitiallydissolvedinsolutionActualnumberofparticlesinsolutionafterdissociation/association

i=1 (for non-electrolytes)

[NOTE - Nonelectrolytic SOLUTES neither associates not dissociates]

ANSWER:

all are TRUE

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EXPLANATION:

जंगलाने सर्वांचे स्वागत केले-दिलखुलास, मनमोकळे. जंगलाचा स्वभावच असा मोकळाढाकळा असतो. अढी धरावी, तेढ बाळगावी यासाठीसुद्धा एखादा कोपरा लागतो. जंगलाला असा कोपरा नसतो. माणसं आणि त्यांची घरं यांना कोपरे असतात म्हणून ती जंगलाइतकी मुक्त, मोकळी नसतात. जंगल मनमोकळे असते. सहजसुंदर असते. ऊनपावसाशी ते लपंडाव खेळते. थंडीवाऱ्याशी गप्पा मारते. फुलताना, खेळताना, डुलताना, हसताना ते मनापासून सगळे काही करते. एप्रिलचा हा महिना, उन्हाळ्याचे दिवस, भामरागडच्या जंगलाची वेश बदलण्याची वेळ, तर त्या जंगलाने अंगाखांद्यावरची पर्णभूषणे ढाळलेली दिसली. त्यातही संकोच नाही, की संशय नाही. त्यामुळे जमीन दिसू नये इतका हातभर खाली वाळलेल्या पानांचा सुदूर सडा. राखाडी, पिंगट रंगाचा. वारा हलकेच त्यात शिरायचा तेव्हा सळसळ आवाज व्हायचा. नागमोडी पाऊलवाटेने जेव्हा पावले त्यावर पडायची तेव्हा त्यातून चर्रचर्र आवाज उठायचा. जणू जंगल बोलते आहे असे वाटते. जंगल कुजबुजते आहे असे भासते. वेळूच्या घनदाट बनात वारा घुमतो तेव्हा तो गाणे होऊनच घुमत घुमत बाहेर पडतो. पानं, फांद्या, फुलं सर्वांनीच जंगल हसते, गाते आणि डुलते. पावसाच्या सरी झेलते. सचैल न्हाते. भिजत चिंब होऊन जाते.

ANSWER:

The key DIFFERENCE between 2O and O2 is that 2O means there are two free OXYGEN atoms, whereas O2 means it is a MOLECULE having two oxygen atoms. Further, 2O is in the elemental state while O2 is in the molecular state.

ANSWER:

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Answer:

A molecule is made up of atoms BONDED TOGETHER. So, while an atom is its own SEPARATE entity, a molecule is what you get when those atoms bond together. These MIGHT be the same elements, such as two oxygen atoms bonded together (O2), or it might be different atoms bonded together like WATER (H2O).

Answer:

Two or more elements combine to form COMPOUND. A compound is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical BONDS common in compounds are COVALENT and ionic bonds. The elements combine together in fixed ratio.

If more than one type of atom is chemically joined, then a compound has been formed. ... We call the particle formed when more than one atom is chemically joined a MOLECULE. If the atoms are the same, then it is a molecule of an element. If the atoms are DIFFERENT, then it is a molecule of a compound.

Explanation:

ANSWER:

(i) Combination reaction

(II) Displacement reaction

(III) Displacement reaction

(iv) Decomposition reaction

(V) Double displacement reaction

Answer:

Ancient Indian and GREEK philosophers have ALWAYS wondered ... images of surfaces of elements showing atoms. ... with the LAW of conservation of mass. sodium carbonate + acetic ACID.

Answer:

2(1 + 1) = 4 ATOMS total

Explanation:

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Answer:

The main DIFFERENCE between scavenger and decomposer is that scavenger consumes dead PLANTS, ANIMALS or carrion to break down the ORGANIC materials into small particles whereas decomposer consumes the small particles produced by the scavengers. Scavengers can be animals such as birds, crabs, insects, and worms.

Answer:

30.973762 u

Atomic NUMBER: 15

Symbol: P

Electrons PER shell: 2, 8, 5

Fertilizers, which come in DRY and liquid form, feed the plant with the required nutrients. Pesticides are used on plants for ELIMINATING, preventing, or controlling pests like; SLUGS, insects, fungal DISEASES (smuts, rots, and MILDEW), and snails. ... The pesticides cause collateral harm to other organisms.

Answer:

1) as almirah is a SOLID, so it has a definite shape and VOLUME. so it is solid at room temperature. 2) the melting point of iron is very high (1538°) while the room temperature is 28°. as melting point of iron is very high as compared to room temperature, it is solid at room temperature.

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156585.2 ºFahrenheit

1143.9 KELVINS

Answer:

answers

Explanation:

1. Nylon - it is a SYNTHETIC fibre. It is used to make SOCKS, ropes ,etc. It can wash EASILY and it is strong, elastic and light.

2.Wood Pulp - rayon is OBTAINED by chemical treatment of wood pulp

3.Polyster and Cotton -  Polycot is obtained by mixing polyester and cotton

4. Melamine - it is an example of thermosetting plastics

5. rayon - this fibre is used instead of silk.. it is ALSO similar with silk

6.bakelite - Bakelite is a polymer which is scratch resistant and an excellent insulator. Due to this, it is used in making cooking utensils which do not conduct heat.

7.good conductor of electricity - plastic is a bad conductor of electricity.

8. nylon- fibre

    pvc-thermoplastic

    bakelite- thermo setting plastic

9.pvc, polythene and bakelite

10. teflon- it is an important element used in non-stick cookware utensils.

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As ice melts into water, kinetic energy is being added to the particles. This CAUSES them to be 'excited' and they BREAK the bonds that hold them together as a solid, RESULTING in a CHANGE of state: solid -> liquid.

Answer:

1465.844

Explanation:

1069.73K − 273.15) × 9/5 + 32 = 1465.844°F

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