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The Speed possessed by the maximum number of molecules in a given sample of gas is called most probalble. It is denoted by Ump

Ump =√(RT/M)

Vapour density = 20,

Hence, 0.625 moles of CO

a) Mercury(Hg) and Bromine (Br)b) Hydrogen (H) and Oxygen (O)c) Copper(Cu), Iron(Fe)d)Water and aire) Milk and shaving creamf) Ether and Alcoholg) Vitamin B12, Haemoglobinh)Table salt(NaCl), Marble(CaCO3)i)Boron, Siliconej)Hydrogen and Lithiumk) Beryllium and Magnesium

Sex determination is a mechanism which determines the individual to be a male or a female based on the sex chromosomes present in it.

Sex chromosomesin sperms determine the baby’s gender. Humans have 23 pairs of chromosomes in each cell. A pair of chromosome forms the sex chromosomes. Males carry XY and females carry XX chromosomes. Reproductive cells give rise to gametes by the division of meiosis. A gamete is a mature reproductive cell - a sperm or an ovum.

If a sperm carrying X fertilises the ovum with X chromosome, then the resulting baby is a girl.

If a sperm carrying Y chromosome fertilises the ovum with X chromosome, then the resulting baby is a boy.

Hence males are responsible for the gender of the newly formed babies. Gender determination of an unborn baby is considered illegal in India.

At same pressure , volume is directly proportional to temp.

so V1/T1 = V2/T2.=> 500/(273+27) = (V2)/(273-5) => V2 = (500/300)*(268) = 446.6 ml.

we know,pv=nrtp1/p2= t1/t2500 * (-5+273) = x * (27+273)500 * 268 = x * 300x = (500*268)/300x= 446.67ml

Leguminous plants has root nodules.

Magnesium ribbon mustbecleaned before burning in airso that the layer ofmagnesiumoxide (which is formed due to reaction ofmagnesiumwithair) can be removed in order to get the desired chemical reaction.

Withmagnesium, the oxide layer forms a white coating on the outside of the metal that will slow down or interfere with the burning process. Theribbons shouldbe sanded with a finesandpaper, therefore, to remove the layer.

Withmagnesium, the oxide layer forms a white coating on the outside of the metal that will slow down or interfere with the burning process. Theribbons shouldbe sanded with a finesandpaper, therefore, to remove the layer.

Sodium is a powerful reducing agent. It wants to donate an electron to things that are electron deficient.

The mechanism of the reduction of aldehydes and ketones by sodium would be similar to that of theBouveault-Blanc reduction. Ethanol is the source of the protons (at least early in the reaction). The dots in the reactions below signify radicals (unpaired electrons), which are represented to the best mchem and MathJax's ability (which is not great).

it is correct ans yes or no

gas will defuse faster and solids will diffuse slow

Since the vessel is open to the air the number of molecules of air is not fixed, but the pressure and temperature are. As the vessel is heated air will escape from it so that the pressure remains constant.

n1T1 = n2T2 ................... from PV=nRTT2 = n1T1 / n1 ................ solve for T2T2 = 5/5 x 300K / 2/5T2 = 750K ............ or ............. 477C

Andhra Pradesh – Hyderabad (Proposed Capital: Amaravati in Guntur district. See Note 1 below.)Arunachal Pradesh – ItanagarAssam – DispurBihar – PatnaGoa – PanajiGujarat – GandhinagarHaryana – ChandigarhHimachal Pradesh – ShimlaJammu & Kashmir – Srinagar (Winter : Jammu)Karnataka – BangalooruKerala – ThiruvananthapuramMadhya Pradesh – BhopalMaharashtra – MumbaiManipur – ImphalMeghalaya – ShillongMizoram – AizawlNagaland – KohimaOrissa – BhubaneswarPunjab – ChandigarhRajasthan – JaipurSikkim – GangtokTamil Nadu – ChennaiTripura – AgartalaUttar Pradesh – LucknowWest Bengal – KolkataChhattisgarh – RaipurUttarakhand – DehradunJharkhand – RanchiTelangana – Hyderabad (see Note 1 below)

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35)The angular momentum (mvr) of electron in nth orbit is equal tonh2πnh2π

For the electron in 5th orbit

angular momentum =mvr =5h2π5h2π

=2.5hπ

answer me 36 question

p orbit

s orbit

d

Anorbitis a fixed path of an electron around the nucleus of an atom. Bohr's model of the hydrogen atom is based on the concept oforbit. Anorbitalis a region in three-dimensional space where the probability of finding the electron is maximum

E3 – E2 = hv = hc/λ – 2.41 ´ 10–12 – (– 5.42 ´ 10–12) = 6.626 x 10-27 x 3 x 1010/ λ

∴ λ = 6.626 x 10-27 x 3 x 1010 / 3.01 x 10-12

= 6.604 x 10–5 cm = 6.604 x 10–5 x 108 = 6604 Å

Fibres obtained from natural sources like plants and animals are called as Natural Fibres .Examples are Cotton, silk ,Jute, wool etc.

Advantages of Natural Fibres:--->They are made up of natural sources like plants and animals.---> Fire resistant.--->On burning the natural fibres we don't get poisonous gases.--->Easily affordable.---> Absorbs sweat and water hence these types of clothes are preferred to wear in summer.Disadvantages Of natural Fibres :---> Are not very strong compared to synthetic fibres.----> Natural Fibres are heavy in weight .---> Natural fibres can be damaged by moths.---> Not wrinkle free--->They are not durable.

The law of constant proportions.

The law of multiple proportions states that if two elements A and B combine together to form more than one compound, then, the several masses of A, which separately combine with a fixed mass of B, are in a simple ratio.This law recognizes the fact that two elements may combine to form more than one product.

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In 1 mole of nitrogen, we have 6.022*10^23 atoms of it.

Now, if we find out how many moles of nitogen are there in 7 gm, we can calculate atoms easily.

So, atomic weight of nitrogen is 14 u..

We have formula,

mole = given weight/atomic mass

x= 7/14

x=0.5 moles

Now, 1 mole of nitrogen =6.022*10^23 atoms

0.5 moles of nitrogen =6.022*10^23/1*0.5

=>3.011*10^23atoms….

गुर्दे' (किडनी) का कार्यात्मक यूनिट क्या है ? Ans. नेफ्रॉन

Rheostatis generallyusedin theapplicationswhere high voltage or current is required.

Rheostatsareusedin dim lights to change the intensity of light.

Rheostatsareusedto increase or decrease the volume of a radio and to increase or decrease the speed of an electric motor.

Natural gases like ethane are hard to store and transport. By converting them to liquids specifically liquid alcohols, they could be more easily stored, transported and used as fuels. Ethanol the liquid form of ethane is a particularly attractive form of liquid fuel because it burns cleaner and provides greater energy than its alternatives. Current methods for making ethanol from ethane require extreme heat making it a very expensive fuel.

1. Neutron is not present in an ordinary hydrogen atom.

Because diamonds are the hardest substance on earth known to man, and therefore would probably make an accurate cut.

A glass cutter marks the cut on the glass using a diamond-tipped tool, then taps one side of the cut with a rubber mallet, to separate the pieces

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MnO2 does not have peroxide ion

please complete your question first

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The metals above hydrogen are more reactive than hydrogen. These metals can displace hydrogen from acids or water and liberate hydrogen gas. The metals copper, silver gold and platinum are less reactive than hydrogen and they do not replace hydrogen from water or acid.

Postulates of the Bohr Atomic Model

Electrons revolve around the nucleus in a fixed circular path termed “orbits” or “shells” or “energy level.”

The orbits are termed as “stationary orbit.”

Every circular orbit will have a certain amount of fixed energy and these circular orbits were termed orbital shells. The electrons will not radiate energy as long as they continue to revolve around the nucleus in the fixed orbital shells.

The different energy levels are denoted by integers such as n=1 or n=2 or n=3 and so on. These are called as quantum numbers. The range of quantum number may vary and begin from the lowest energy level (nucleus side n=1) to highest energy level. Learn the concept ofan Atomic number here.

The different energy levels or orbits are represented in two ways such as 1, 2, 3, 4… or K, L, M, N….. shells. The lowest energy level of the electron is called the ground state. Learn the concept ofValency here in detail.

The change in energy occurs when the electrons jump from one energy level to other. In an atom, the electrons move from lower to higher energy level by acquiring the required energy. However, when an electron loses energy it moves from higher to lower energy level.

Therefore,

1storbit (energy level) is represented as K shell and it can hold up to 2 electrons.

2ndorbit (energy level) is represented as L shell and it can hold up to 8 electrons.

3rdorbit (energy level) is represented as M shell and it can contain up to 18 electrons.

4thorbit (energy level) is represented as N Shell and it can contain maximum 32 electrons.

neutral salt is the correct answer

Sponge is compressible because it is having minute pores in which air is trapped .on presssing the air is expelled. it is still considered as a solid because it has a definite volume and shape does not changes unlesss compressed

gases r more compressible than liquids.this is because, the particles of gases have a large space between them due to very weak force of attraction between them. But the inter-molecular space of attraction between the particles of liquid is less also the atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid or solid

1) say no to straw2) don't use water bottles3)use bio degrading products4)give up gum5)Buy from bulk bins6) Reuse glass containers

1)A forest is a large area dominated by trees. Hundreds of more precise definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing and ecological function

2)Thedeforestation causesinclude many factors. The destruction of the forests is occurring due to various reasons, one of the main reasons being the short-term economic benefits. ... Forests are cleared to accommodate expanding urban areas. This results in loss of forest area and massivedeforestation

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The atmospheric pollutants or gases that form smog are released in the air when fuels are burnt. When sunlight and its heat react with these gases and fine particles in the atmosphere, smog is formed. It is purely caused byair pollution.

what is your question

what is your question

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20NO2+10O2+ H2O=20HNO3

Askeleton equationis just a way of using the formulas to indicate the chemicals that were involved in the chemical reaction.

"Mg + O2 MgO."

Thisskeleton equationshows that magnesium reacts with oxygen to form magnesium oxide.

In askeleton equationyou put chemical formulas in place of chemical names.

option b

Incompressible flowrefers to the fluid flow in which the fluid's density is constant. For a density to remain constant, the control volumehas to remain constant. Even though the pressure changes, the density will be constant for an incompressible flow. Incompressible flow means flow with variation of density due to pressure changes is negligible or infinitesimal. All the liquids at constant temperature are incompressible.Compressible flowmeans a flow that undergoes a notable variation in density with trending pressure. Densi tyr(x, y, z) is considered as a field variable for the flow dynamics. When the value of Mach number crosses above 0.3, density begins to vary and the amplitude of variation spikes when Mach number reaches and exceeds unity.The behavior of control volume (CV) for incompressible and compressible flow is depicted in the image below.

Incompressible And Compressible Flow

Incompressible flowrefers to the fluid flow in which the fluid's density is constant. For a density to remain constant, the control volumehas to remain constant. Even though the pressure changes, the density will be constant for an incompressible flow. Incompressible flow means flow with variation of density due to pressure changes is negligible or infinitesimal. All the liquids at constant temperature are incompressible.

Compressible flowmeans a flow that undergoes a notable variation in density with trending pressure. Densi tyr(x, y, z) is considered as a field variable for the flow dynamics. When the value of Mach number crosses above 0.3, density begins to vary and the amplitude of variation spikes when Mach number reaches and exceeds unity.

As you can see that Fluorine has Highest value of E°. so Fluorine is the strongest oxidizing agent.

and also since I2 has least value. so, on reaction I- will be strongest reducing agent here.

so option C. is correct.

( least oxidizing----after reaction---- strong reducing).