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because it hai very HIGH MELTING POINT and Boling point so it SOLID in ROOM temperature

tion:since the MASS of REACTANTS is equal to the mass of PRODUCTS. i.e. (15.95+8)=(14.2+9.75)=23.95gThe data represent the Law of CONSERVATION of mass in a chemical reaction.

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ally meet GLYCEROL as a rather syrupy colourless LIQUID, much more viscous than water or alcohol. ... These three OH groups can bind to other hydroxyl groups, either in water molecules – which MAKES glycerolvery soluble in water – or by hydrogen-bonding with other glycerol molecules

359.3 gExplanation:Volume is FOUND from initial condition.n = ( 370 ) ( 1 ) / 32 moln = 11.56 molUsing IDEAL gas equation : P V = n R T V = n R T / PV = ( 11.56 × 0.0821 × 298 ) / 30V = 9.43 LNow final number of MOLES : n = P V / R T n =  ( 1 × 9.43 ) / ( 0.0821 × 348 ) n = 0.330 molMass of oxygen left : = > ( 0.330 × 32 ) = > 10.6 gMass of oxygen escaped : = > Initial MASS - Final mass= > 370 - 10.6 g= > 359.4 gTherefore , mass of oxygen escape is 359.3 g

We can USE the formula PV = nRT.Let us assume that V = 1 liter.PV = nRTn = PV/RT = (768/760 atm) x (1 L) / [(0.0821 Latm/mole K) x (303K)] = 0.0406 moles of gas = 1 L x (1 m³ / 1000 L) x (1.35 kg / 1 m³ ) x (1000 G / 1 kg) = 1.35 g Thus, MW of gas = 1.35 g / 0.0406 moles = 33.3 g/mole.At STP, n = PV / RT = (1.0 atm) x (1 L) / [(0.0821 Latm/moleK) x (273K)] = 0.0446 moles = 0.0446 moles x (33.3 g / mole) x (1 kg / 1000 g) = 0.00149 kg= 0.00149 kg / 1 L x (1000 L / 1 m³) = 1.49 kg / m³

It is the matter of fact that due to PV = NRT, the compressibility factor of all IDEAL gases are equal to 1 as they have strong dipole due to LARGE surface area. ... Hence, it can be inferred that case of hydrogen and helium the compressibility factor is always greater than 1.

Dalton's law : [ From observation of KINETIC theory ] There are no attractive forces between particle of an ideal gas. In a MIXTURE of gases each particle exert on wall with same number of times per second, if no other particles were present. Therefore , the presence of other gases in a mixture is not change by presence of other gases.Know more : Dalton's law of partial PRESSURE : It state that total pressure exerted by in mixture of two or more non reactive gases in a definite volume is EQUAL to sum of partial pressures exerted by individual gases.i.e.  P = P₁ + P₂ + P₃ + P₄ + P₅ + ..............

9.20 molExplanation:Given : Volume V = 102 LPressure P = 3.7 atmTemperature T = 500 KWe have to FIND NUMBERS of moles n : From ideal gas equation : P V = n R T = > R = 0.082 L atm mol⁻¹ K⁻¹Putting values in equation we get : 3.7 × 102 = n × 0.082 × 500= > n = 3.7 × 102 / 0.082 × 500= > n  = 377.4 / 41 mol= > n = 9.20 molTherefore , number of moles of gas is 9.20 mol.

8.333 moles of oxygenCO = 4.1666 moles and STEAM = 8.333 molesExplanation:100l = 100000ml100000ml  = 100000cm³⇒ 100000cm³ = 100 dm³moles=100dm³/24dm³=4.1666 MOLES1 moles of METHANE REACTS with 2 moles of oxygenthen 4.1666 moles reacts with 8.333 moles of oxygenBy Equation CO = 4.1666 moles and steam = 8.333 moles

No. A lewis acid is a chemical specie in which ONE of the atom requires a lone pair of electron in ORDER to get a STABLE electronic CONFIGURATION. In NH4+, all atoms are in stable electronic configuration and hence it isn't a lewis acid. It is a weak Lewis acid as it's conjugate base is a good Lewis base...

:-Grignard reagents are very reactive. They react with the moisture present in the APPARATUS or the starting materials (RX or Mg).The REACTION is as follows :-R MgX + HOH ---------) R — H + Mg(OH) XTherefore, Grignard reagents must be prepared in anhydrous conditions to PREVENT such immediate reactions of the same.

onsider an equationa +b gives c+dthus q=(c)(d)/(a)(b)so if denominater/reactant is ZERO then q=infinity (simple maths rule)so we SEE that q=0 can only be attained if numerator / PRODUCTS become zero.So the only THING left will be reactant.Explanation:hope U understood

nce:atoms have no charge in them, that is they are electrically NEUTRAL whereas ions have a particular charge in them.atoms may or may not have STABLE ELECTRONIC configuration but ions always POSSES a stable electronic configuration.atoms may or may not exist independently whereas ions exist bfreely in nature.hope this is helpful, please MARK me as the brainliest!

CaO+H2O->CA(OH)2+heatExplanation:HOPE u will LIKE

hiExplanation:I love U SINDHU waiting for REPLY BABY

ern astrology, astrological signs are the twelve 30° sectors of the ecliptic, starting at the vernal EQUINOX, also known as the FIRST Point of Aries. The order of the astrological signs is Aries, TAURUS, GEMINI, Cancer, Leo, Virgo, LIBRA, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.Hope it helps uh

Because they GAIN OXYGEN.

nThe STUDENT SAID to the teacher," GIVE me lots of ASSIGNMENTS"Answer:HIIIIIIIIII!¡here's your answerThe student told the teacher to give him lots of assignments.

Sodium (Na)Explanation: SINCE the force of attraction on the valence ELECTRON of Na is the least along period 3, hence Na can easily lose the valence electron and hence most METALLIC

The ring usually forms NEARER to the hydrochloric acid end of the tube because hydrogen chloride diffuses more slowly than AMMONIA. This is because hydrogen chloride has almost twice the MOLECULAR weight of ammonia, and the rate of DIFFUSION is inversely proportional to the square root of the molecular mass of the gas.

a CHEMICAL REACTION in which the rate of reaction is constant and independent of the concentration of the reacting substances — compare ORDER of a reaction.Explanation:mark as BRAINLIEST

CH3CH2NO2+H2OExplanation:CH3CH3+HNO3---> CH3CH2NO2+H2O

No ,it's not sameExplantation:MOLARITY DEPENDS on gran molesNormality depends on EQUIVALENT weight. Hope this HELPS you ✌✌

[latex] \boxed{because two chlorine atoms are present in 2 chlorobutane duty which it is more covalent in nature than that of 1 chlorobutane DUE to which its MELTING point is LESS than that of 1 chlorobutane][/tex]

In case 1 : the solution was not COMPLETELY MIXED as that of soap water hence it scatters beam of lightCase 2 : solution is not completely mixed the particles are larger hence it does not SCATTER light and the light does not passescase 3 : the solution is completely mixed as that of sugar water HOPE it helpsplz mark it as brilliant answer

no. (1)is the CORRECT ANSWER

Delta H is the change in enthalpy and Delta U is the change in internal energy. Internal energy is the amount of energy a system has. However, we must realize that a system doesn't EXIST in a vacuum. Rather, there must be some sort of change in volume/pressure because of the PRESENCE of a system. If we hold pressure constant, as it often is when a system is introduced, volume must change (we know this from gas laws). This leads us to the CONCEPT of enthalpy which is, in essence, a CONVENIENT way to MEASURE a system's internal energy at a constant pressure.The following equation relates the two quantities:ΔH = ΔU + PΔVQ is heat -- and is equal to enthalpy at a constant pressure.

Exothermic REACTIONS release HEAT or energy.When you or we BREATH out,breath is warmer.This is happened for respiration reaction of our body. Carbolydrates present in food are broken down to FORM glucose.This glucose combines with oxygen in the CELLS of our body and provides energy.This reaction is known as respiration.hence,respiration is considered as an exothermic reaction.

Hii mate crystal lattice has expanded through the inclusion hydrogen. Explanation:HOPE it will help you follow me PLZ Mark my ANSWER as brain list answer thanks so MUCH

are PLACED on left SIDE WHEREAS non-metals are placed on RIGHT side in modern PERIODIC table.

(C) OPTICALLY inactiveExplanation:I don't it is RIGHT or WRONG

BF3>NH3>PH3Explanation:              boron has least atomic RADIUS and F is more elecronegative in nature so the repulsions will be more INCREASING the BOND angle followed by NH3 and followed by ph3

the ANSWER depends on the RESISTIVITY of both the MATERIALS EXPLANATION:               R=p(L)/A

solutionExplanation:FOLLOW me.,........

option dExplanation:this is due to ethanoic acid has a pungent order and when it is REACTING with SODIUM carbonate..it RELEASES a gas....pungent smell is a property of ethanoic acid... HOPE it helped u : )