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addition of OXYGEN and REMOVING of hydrogen have a LEARNING day

hat,(i). H does not represent HYDROGEN.(ii). Some elements are given in their own symbol and  position in the periodic table.(iii). Others are shown  with a letterWe need to find the ANSWER of given questionUsing given table(I). The most electronegative element is J.We know that,Electronegativity of element increases from down to up in groups, and increases from left side to RIGHT side in periods.(II). The most reactive element of group IA is R.(III).  The element from period 3 with least atomic size is M.(IV). The valence ELECTRONS are PRESENT in Q is  5.(V). T has least  ionization energy in group 2.(VI). The noble gas of the fourth period is y.(VII). The ionic bond between A and H.The molecular formula is Hence, This is required answer.

tion:polar=>the PROPERTY of ATOM that's so attraction/ repulsion.... for another atom.... that is not stableeg=> NA+ +. cl-=>> NACLnon polar=>. that are mostly stable and doesn't SHOW attraction and repulsion property

I THINK ENTHALPY of SOLUTION

e of sodium chloride has a mass of 58.5 G. We calculate this from the atomic MASSES of sodium and CHLORINE:Atomic masses:Sodium: 23Chlorine: 35.5Molecular mass = 23 + 35.5  = 58.5Now, you can see from the equation above that in 58.5g of NaCl, there are 23g of sodium. So, to find the grams of sodium in 75g NaCl, we would do the FOLLOWING calculations:Grams of sodium in 75g NaCl = 23x75  58.5  = 29.5Thus, there are 29.5 grams of sodium in

The ANSWER is 2640.0 G of O2.I HOPE IT WILL HELPS YOU.

limestoneExplanation:other names are MARBLE, OYSTER, CALCITE etc.Hope it HELPS......pls mark me the BRAINLIEST

"P" is a Non-METAL and is of GROUP 17Element "Q" is a Metal and is of Group 2HOPE IT HELP$...!!!@being_SaRcAsTiC

e ,Diamond is a form of CARBON Hence , The chemical FORMULA of diamond is C Hope you find it helpful!!!Do mark it as BRAINLIEST!!

+I effect more the ELECTRON releasing GROUP attached to carbocation more the density of electron increases on the carbocation so STABILITY increases. So 3° carbocation is more stable. ... So tripheny carbocation is more stable. So stability ORDER is 3°>tripheny carbocation> Allylic carbocation >2>1.

Isotopes As stated earlier, not all atoms of a given element are identical. Specifically, the number of neutrons in the nucleus can vary for many elements. As an example, naturally OCCURRING carbon exists in three forms, which are illustrated in the figure below. Figure 2.1.2: Nuclei of the three isotopes of carbon. Almost \(99\%\) of naturally occurring carbon is carbon-12, whose nucleus consists of six protons and six neutrons. Carbon-13 and carbon-14, with seven or eight neutrons, respectively, have a much lower nuclei abundance. Each carbon atom has the same number of protons (6), which is equal to its atomic number. Each carbon atom also contains six electrons, allowing the atom to remain electrically neutral. HOWEVER, the number of neutrons varies from six to eight. Isotopes are atoms that have the same atomic number but different mass numbers due to a change in the number of neutrons. The three isotopes of carbon can be referred to as carbon-12 \(\left( \ce{^{12}_6C} \right)\), carbon-13 \(\left( \ce{^{13}_6C} \right)\), and carbon-14 \(\left( \ce{^{14}_6C} \right)\). Naturally occurring samples of most elements are mixtures of isotopes. Carbon has only three natural isotopes, but some heavier elements have many more. Tin has ten stable isotopes, which is the most of any known element. The nucleus of a given carbon atom will be one of the three possible isotopes discussed above. While the presence of isotopes affects the mass of an atom, it does not affect its chemical reactivity. Chemical behavior is governed by the number of electrons and the number of protons. Carbon-13 behaves chemically in exactly the same way as the more plentiful carbon-12. Size of Atoms The graphite in your pencil is composed of the element carbon, a nonmetal. Imagine taking a small piece of carbon and grinding it until it is a fine dust. Each speck of carbon would still have all of the physical and chemical properties of carbon. Now imagine that you could somehow keep dividing the speck of carbon into smaller and smaller pieces. Eventually, you would reach a point where your carbon sample is as small as it could possibly be. This final particle is called an atom. Atoms, as you probably know, are extremely small. In FACT, the graphite in an ORDINARY pencil contains about \(5 \times 10^{20}\) atoms of carbon. This is an almost incomprehensibly large number. The population of the entire Earth is about \(7 \times 10^9\) PEOPLE, meaning that there are about \(7 \times 10^{10}\) times as many carbon atoms in your pencil as there are people on Earth! For this to be true, atoms must be extremely small.Explanation:

now after observing the BALANCE reaction , 2 mole of H2O2 decompose and PRODUCES 1 mole of O2 . so means when H2O2 decomposes its 1/2 mole of oxygen will PRODUCE . so oxygen will produce = 4.20/2 = 2.10 mole ...

methyl is an EXAMPLE of alkyl group and it's formula is CN H2n+1

90° I HOPE it will HELP you

re here is your answer. Explain the rise of temperature on heating on the basis of KINETIC THEORY. Solution : When heat is given to a gas, the rms velocity of the gas molecules INCREASES. ... On reducing the volume of the gas at constant temperature, the PRESSURE of the gas increases.Hope it helped u. plz MARK as brianliest

is HELPS you. OZONE is REDUCED to H2O

if the PERFUME is STRONG it will POSSIBLE.

tion:1: most reactive , least or unreactive2:br(BROMINE)3:less4:DECREASES5: covalent6:gains7;non- metals8:higher;less9:LARGER;zero10: INCREASE,increases by 1

tion:Redox REACTION is a reaction in which ADDITION or removal of oxygen and hydrogen TAKES place together [Redox=(Red=Reduction and ox= OXIDATION ]

H2PO42 METHYL 3 BROMIDE PROPENEFIRST ONE

a YELLOWISH resin obtained from the balsam fir and USED for MOUNTING preprations on microscope slides

OPTION A IS CORRECTExplanation:ZeroSOLUTIONThe work done is the product of PRESSURE and change in volume.Since the IDEAL GAS EXPANDS spontaneously into vacuum Pex=0 . HENCE work done is also zero.MARK ME BRAINLIEST ✌✌✌✌✌✌

A solution of Na2Co3 is ALKALINE because NA(sodium) is a STRONG base and Co can't compete with sodium.

n exists but F 3- DOESNOT exist.When we see the lewis dot structure of both the ELEMENTS below, we can see F2- has octet structure, I3- has more electrons than octet.Some elements can afford more electrons than octet structure.This is because IODINE has d orbital in its electronic CONFIGURATION, where as Florine doesnot.Iodine accomodates its more electrons in the d orbital and forms I3- ion when needed.But Florine due to lack of d orbital cannot accomodate any more electrons than COMPLETE octet.

_____________________________________ᑫᑌᗴՏTIOᑎ ::::What is an atom?having trouble with your answer?here it is...!!____________________________________________Atom (detailed answer) :Atoms are the basic units of matter and the defining structure of elements. The term "atom" comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. We now know that atom are made up of three particles: protons, neutrons and electrons — which are composed of EVEN smaller particles, such as quarks.Atoms were created after the Big Bang 13.7 billion years ago. As the hot, DENSE new universe cooled, conditions became suitable for quarks and electrons to form. Quarks came together to form protons and neutrons, and these particles combined into nuclei. This all took place within the first few minutes of the universe's existence.Atomic particles :protonneutron electron The protons and neutrons together make the structure called nucleus of the atom. The electrons revolve around nucleus. The mass of an atom RESIDES in its nucleus(SUM if masses of protons and neutrons).Some terms related to atoms :Atomic number(Z) :the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the PERIODIC table.Atomic mass :the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.Atomic size :The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.Atomic energy :Atomic energy or energy of atoms is energy carried by atoms. It is an other form of nuclear energy.Atomic mass number(A) :The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.____________________________________________#answer_with_quality ✔

1. True ,because humus is DEAD organisms2. False ,it has a high percolation rate 3. True , because it has more humus 4. True ,because it is really very sticky EXPLANATION:Plzzz mark branliest Don't forget to FOLLOW me

apne DESH to PTA nahi ha dusro KA JANNE m Kya rakha ha

1 MOLE N2=28g OCCUPIES 22.4L at STPSO 14 N2 will occupy 22.4 ÷ 2 =11.2 at STP

there will be 4 TETRAHEDRAL VOIDS in HCP

ehyl ehanoate will be FORMED

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is an alloy.Its COMPOSES of CU(COPPER) and SN(TIN)._____________@zaqwertyuioplm :)

don't KNOW what to do SORRY

tion:natural INDICATORS are PREPARED from TURMERIC PURPLE cabbage

des are the CHEMICALS added into soil so as to REMOVE the bacteria which destroy the crop from it.Dyes are the colours obtained from the FLOWERS of different PLANTS.