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ong>Explanation:

3 examples of CHEMICAL reactions in EVERYDAY life.

cooking

digestion

rotting of food

rong>ANSWER:H2>

H2 +C12+2HCI

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ong>Answer:

In its NUCLEUS there is only one PROTON. So its only electron shell has only one electron. ... Hydrogen behaves that WAY in the presence of strong bases, which are electron donors. But also the hydrogen atom can gain stability by EJECTING its only electron, and BECOMING a bare proton

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>ᴛʜᴇ ʀᴇᴅᴅɪsʜ ʙʀɪᴛᴛʟᴇ ᴄᴏᴀᴛɪɴɢ ғᴏʀᴍᴇᴅ ᴏɴ ɪʀᴏɴ ᴇsᴘᴇᴄɪᴀʟʟʏ ᴡʜᴇɴ ᴄʜᴇᴍɪᴄᴀʟʟʏ ᴀᴛᴛᴀᴄᴋᴇᴅ ʙʏ ᴍᴏɪsᴛ ᴀɪʀ ᴀɴᴅ ᴄᴏᴍᴘᴏsᴇᴅ ᴇssᴇɴᴛɪᴀʟʟʏ ᴏғ ʜʏᴅʀᴀᴛᴇᴅ ғᴇʀʀɪᴄ ᴏxɪᴅᴇ.

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ong>Answer:

MAY be 10 AMU is the answer

ong>Explanation:

The bulb won't GLOW when the electrodes are emebedded in SOLID lead bromide. ... The bulb will glow when the MATERIAL surrounding the electrodes is molten lead bromide. When an ionic compound is in the molten (liquid) FORM the positive and negative ions are free to move around.

ong>Answer:

The bulb won't GLOW when the electrodes are emebedded in solid lead bromide. ... The ELECTRICAL charge will be unable to move from one electrode to the other so the circuit will be broken. The bulb will glow when the material surrounding the electrodes is molten lead bromide.

ong>Answer:

5V+ 150= 375 + 2.5V

So 2.5V=225

Therefore V=90.

So adding 90 ml.of 5M H2SO4, to 150 ml.of 1M H2SO4 we get in the final mixture 250 ml.of 2.5M H2SO4.

[NOTE: MULTIPLYING NO.OF ml OF SOLUTION WITH MOLARITY WILL GIVE NO.OF M.MOLES OF THE SUBSTANCE.]

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i) 100.0869 g/mol

ii) 63.01 g/mol

iii) 342.3 g/mol

iv) 120.366 g/mol

ong>Explanation:

Acetylene on passing through red HOT IRON tube at 873K undergoes CYCLIC POLYMERIZATION. Three of the acetylene molecules polymerise to form benzene.

ong>Explanation:

रासायनिक सूत्र (CHEMICAL formula) किसी रासायनिक यौगिक को इस प्रकार निरूपित करता है जिससे पता चलता है कि वह यौगिक किन-किन तत्वों के कितने-कितने परमाणुओं से मिलकर बना है। सामान्य प्रयोग में प्रायः अणुसूत्र (MOLECULAR formula) के लिये भी 'रासायनिक सूत्र' का ही प्रयोग कर दिया जाता है।

here is your answer...

where are the OPTIONS of these QUESTIONS

er:

Hope it helps...

Explanation:

Most RECENT answer. "Neßlers Reagenz" (K2[HgI4]) This reagent is prepared by mixing of 2 g potassium IODIDE in 5 ml water. To this solution is ADDED 3 g mercuri (II) iodide and the resulting solution is made with H2O to 20 ml.

crushed eggs have CALCIUM CARBONATE,

so the reaction is

CaCO3+HCL=CaCl2+H2O+CO2. or it can be any ACID.

e saree EK sath KAISE answer KAR payenge?

Answer:

13

Explanation:

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Chemistry > Structure of Atom > Quantum Numbers

Structure of Atom

Quantum Numbers

Quantum numbers are numbers assigned to all the electrons in an atom and they describe certain characteristics of the electron. It is very IMPORTANT to understand Quantum Numbers in order to understand the Structure of Atom. In this chapter, we’ll learn everything about Quantum Numbers.

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Introduction to Quantum Numbers

Quantum Number

An atom consists of a large number of orbitals which are distinguished from each other on the basis of their shape, size and orientation in space. The orbital characteristics are used to define the state of an electron completely and are expressed in terms of three numbers as stated, Principal quantum number, Azimuthal quantum number and Magnetic quantum number and Spin Quantum number.

Quantum Numbers

Quantum number are those numbers that designate and distinguish various atomic orbitals and electrons present in an atom. A set of four numbers through which we can GET the complete INFORMATION about all the electrons in an atom, be it energy, location, space, type of orbital occupied, and even the orientation of that orbital is CALLED Quantum Numbers.

ong>ANSWER:

thik SE LIKHO................

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The discovery of the technology INVOLVED with X-ray machines was discovered by German scientist Wilhelm Conrad Röntgen. ... X-RAYS, which are sometimes called “Röntgen rays” in Germany, became a MAJOR diagnostic tool in medicine because they allowed doctors to SEE inside the human body without surgery.

now VALENCY of MnO4 is 2-

SO

given = y2

so, y= 2/2

Valency of Y is 1

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ong>ANSWER:

d

Explanation:

CURD and VINEGAR

both contain ACIDS curd has lactic acid and vinegar has acetic acid

ass=18g; MOLAR mass=18g
No:of moles=18/18=1
No:0f ATOMS= 6.022*10^23 atoms

ong>ANSWER:

mole NEEDED

Explanation:

to complete combustion of an alkane 3N + 1 /2 moles oxygen needed

( n ) is the no of CARBON atoms in alkane

butane has 4 so 13/2 needed

ong>ANSWER:

Van't Hoff factor =i

For BA(NO

3

)

2

,i=3; Ba+2NO

3

−

For NACL, i=2; Na

+

+Cl

−

For Glucose, i=1

So higher the van't Hoff factor, higher is the lowering of VAPOR pressure

So Ba(NO

3

)

2

will have the highest lowering of vapor pressure.

Option C is correct.

ong>Answer:

1. is Combustion reaction or ENDOTHERMIC reaction or Decomposition reaction

2. is Decomposition reaction or Endothermic reaction or Combustion reaction

Explanation:

all THREE types of REACTIONS are these

INDICATORS in which ONE of the REACTANTS behaves as an indicator is known as an internal indicator. KMNO4 is an example of an internal indicator.

3=CUO+CO2

ZNCO3=ZNO+CO2

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-111.5

Explanation:

ong>Answer:

Required Answer:-

1)The point under the ground where an earthquake begins.

Focus

The point above the point on the surface of earth is known as Epicenter and the places NEAR it are the most affected.

2) The process of adding chlorine to water to kill germs.

Chlorination

This process is mainly used for the purification of water in large amount as well as in the HOME water filter..

3)The deep HOLES on the surface of the moon.

Craters

They are cracks formed by the hitting of meterioites and asteroids on the surface of moon.

4)The layer of the atmosphere in which spacecraft orbit.

Thermosphere & Exosphere.

Depends on the space shuttles, spacecrafts and the motive behind sending them to space.

5)The process by which salt can be separated from water.

Evaporation, then crystallization

Salt is a non-volatile solid which remains behind when water is evaporated. Later it is CRYSTALLIZED to get pure form of salt.

6)The types of tide in which the water level rises.

High tides.

They are due to the gravity of moon upon earth. The DIFFERENCE in height between the high tide and the low tide is called the tidal range.

tly they are IDENTICAL

ong>Answer:

0.5m NaCl

Explanation:

Two solutions are isotonic if they have the same OSMOTIC pressure.

Osmotic pressure π=iCRT

For NaCl, the van 't Hoff factor i=2 as one NaCl molecule DISSOCIATES into 2 ions.

For urea, the van 't Hoff factor i=1 as urea does not dissociate.

6% W/V aqueous solution of urea means 6 g urea in 100 ML solution or

$$ 60 g urea in 1000 mL (1 L) solution.

C=

60g/mol×1L

60 g

=1M

i

urea

×C

urea

=i

NaCl

×C

NaCl

1× 1 M= 2×C

NaCl

C

NaCl

=0.5 M

Mass of Nitrogen = ? So that the mass will be "0.28 G".

Answer is CARBON MONOXIDE

BeF2-Beryllium fluoride

BF3-Boron trifluoride

CH4-Methane

NH3-Ammonia

H2O-Water

CH3-Methly

ong>Answer:

The LEWIS structure below (of one of the FOUR nucleoside building blocks that make up DNA) can appear complex and confusing at FIRST glance. Fortunately, common bonding patterns occur that can allow for simplifications when DRAWING structures. The rules for the simplifies structures rely on the neutral bonding patterns for carbon, orygen, nitrogen, phosphorus, and sulfur primarily. Since organic compounds have a hydrocarbon backbone, the atoms that are NOT carbon and hydrogen are called HETEROATOMS. 2'-deoxycytidine contains seven heteroatoms: four oxygen atoms land three nitrogen atoms. Heteroatoms are a primary source of chemical reactivity for organic chemistry.

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ong>ANSWER:

CH⁰ please mark me BRAINLEST.. please follow me

ong>Answer:

When sodium HYDROGEN CARBONATE is heated we get sodium carbonate, water and carbon dioxide gas.

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White coloured solid PRECIPITATE

ong>ANSWER:

Lpg is STORED in cylinder at HIGH PRESSURE

ong>ANSWER:

please CHECK it on n3t, t

you will SEE there

[Co 4(NH3) CL2]Cl

Explanation:

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2w₹:'%:+&-(&+%-)"86 -V

ong>Answer:

All COMPOUNDS are molecules, but not all molecules are compounds. That is because a molecule can be MADE up of two atoms of the same KIND, as when two OXYGEN atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms.