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This empirical relation, FORMULATED by the physicist Robert Boyle in 1662, STATES that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant TEMPERATURE; i.e., in equation FORM, pv = k, a constantExplanation:Mark as BRAINLIST

Diamond and graphite both only have carbons and have covalent bonding involved.Diamond has a giant covalent lattaice and each CARBON atom is bonded to 4 other carbon atoms.Graphite on the other hand is formed in layers and each carbon is bonded to 3 other carbon atoms. As a result there will be an extra unbonded electron thus forming a SEA of delocalised electrons.Graphite is soft because it has weak inter molecular FORCES between its layers.Diamond is hard DUE to its giant covalent LATTICE and it has many strong covalent bonds.

tion:Familiar substances that sublime READILY include iodine (shown below), dry ice (shown below), menthol, and CAMPHOR. Sublimation is OCCASIONALLY USED in the laboratory as a method for purification of solids, for example, with caffeinehope it helps you please mark me as BRAINLIST

That's 17.5/2 =8.75 LITRES!EXPLANATION:That's 17.5/2 =8.75 litres!

...H 2SO4 has WEAKER Ionisation in WATER because dissociation takes place in two steps wherein second step there is no 100% ionisation because HHSO 4− is WEAK acid ion:

we can use the VALUE of the ionization constant equal to 0.1 as the point of DISTINCTION between a strong acid and WEAK acid Explanation:acid HYDROCHLORIC acid formula hcl ka GREATER than 1 pKa negativeplease mark me as a brainlist

HydrogenExplanation:So, RATE of DIFFUSION of hydrogen GAS is four times faster than OXYGEN gas.

tion:An ionization constant (using the symbol K) is a constant that depends upon the EQUILIBRIUM between ions and molecules that are not ionized in a SOLUTION or LIQUID. It is the ratio of PRODUCTS and reactants raised to appropriate stoichiometric powers or the ratio between the product of concentration and reactant

tion:Graham’s law of diffusion STATES that the rate of diffusion of a gas at a given TEMPERATURE is inversely proportional to the SQUARE root of its molecular mass, m.I.e. R α 1/√mAlso, vapour density (ρ) = molar mass (g)/molar VOLUME (v)Molar mass = vapor density (ρ) x molar volume (v)Therefore, R α 1/√ρvFor two gases with molecular masses m1 and m2 ; and rates of diffusion R1 and R2:R1/R2 = √m2/√m1 – (1)R1/R2 = √ρ2v2 /√ρ1v1 – (2)Also, rate of diffusion = volume/time I.e. the GREATER the rate, the shorter the time.Comparing the rates of diffusion of equal volumes of two gases in times t1 and t2, we have R1 = V/t1 and R2 = V/t2

tion:So, rate of diffusion of hydrogen GAS is four TIMES FASTER than oxygen gas.hope it's HELPFUL

Carbon monoxide in the AIR rapidly enters all parts of the body, INCLUDING blood, brain, heart, and muscles when you breathe. The carbon monoxide in your body leaves through your lungs when you breathe out (exhale), but there is a delay in ELIMINATING carbon monoxide.plz MARK me brainiest

Chlorine does not show catenation property and also the ALLOTROPIC forms for every ELEMENT is observed through different REACTIONS and EXPERIMENTS and it was found that CHLRINE does not exist in allotropic form. So it is fact based question.

rus exists in three allotropic FORMS; these are 1)white PHOSPHORUS2)red PHOSPHORUS 3) black phosphorus.

Painite is the rarest gemExplanation:hope it helps PLZ THANK my answers n FOLLOW n brainliest

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a A EXPLANATION:A H2 and CO is a CORRECT ANSWER

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by SUNI HOPE this HELPS you

CarbonFluorineChlorineBromine HYDROGEN

Pb(NO 3 ) 2 +2KI→PbI 2 +2KNO 3 The molar masses of Pb(NO 3 ) 2 and KI are 331.2 g/mol and 166 g/mol respectively. The mass of PbI 2 is 461 g/mol.Let X moles of Pb(NO 3 ) 2 react with 2X moles of KI to PRODUCE X moles of PbI 2 .Total mass of Pb(NO 3 ) 2 and KI that has reacted is 331.2X+2×166×X=663.2X g. The total mass of two was held constant at 5.0 g 633.2X=5 X=0.007539 moles.This is the number of moles of PbI 2 obtained. The mass of PbI 2 obtained =0.007539mol×461g/mol=3.4g.The answer to the nearest integer is 3.Explanation:please mark me as BRILLIANT answer

Iron CUTTING shers has a short cutting edge ,WHEREAS a pair of CLOTH cutting scissors has a LONG a long cutting edge

pOH (The PH SCALE for bases) can be found by TAKING the NEGATIVE logarithm of OH− concentration. pOH = −log[. 05M] = 1.3.

0.05 M of HCL This solution can be considered equivalent to a solution 0.1 M (0.15 - 0.05) in HCl thus PH = -Log (0.1) = 1. Explanation:HOPE it is helpful or you and please MARK me BRAINLEST

tion:An IONIZATION constant (using the SYMBOL K) is a constant that depends upon the equilibrium between ions and molecules that are not IONIZED in a solution or liquid. It is the ratio of products and reactants raised to appropriate stoichiometric POWERS or the ratio between the product of concentration and reactant.hope it's HELPFUL( ◜‿◝ )♡.

• Predict weather the variable will INCREASE or decrease.• Label all KNOWN and identify unknown _change all temperature to Kelvin • Write the equations to be used_ (always the combained gas low of 3 variabled)• Identify in the unknown in the equations.• Rerrange equations to solve for unknown.•Plug in the number and solve the equations._ this STEP may be done first to reduse confection• Check that number maches prediction.

tion:The COMBINED GAS LAW is an AMALGAMATION of the three previously known laws which are- Boyle's law PV = K, Charles law V/T = K, and Gay-Lussac's law P/T = K. Therefore, the FORMULA of combined gas law is PV/T = K, Where P = pressure, T = temperature, V = volume, K is constant.

0.0000001 NEUTRAL Solution (pure neutral water)8 0.000001 BASIC (alkaline) Solution - HYDROXIDE IONS - OH-9 0.0000110 0.0001

Diamonds occur in a variety of colors—steel gray, white, blue, yellow, orange, red, green, PINK to PURPLE, brown, and black. Colored diamonds contain interstitial impurities or structural defects that cause the coloration; pure diamonds are perfectly TRANSPARENT and colorless.Explanation:HOPE it helps uhh❤️✌️

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Jean BAPTISTE andre DUMAS Explanation:PLZ mark as BRAINLIEST

- The ideal gas law STATES that PV = NkT, where P is the absolute pressure of a gas, V is the volume it occupies, N is the number of atoms and MOLECULES in the gas, and T is its absolute temperature.Necessary:- To mark me as BRAINLIEST and THANKS me if you like my answer also vote me as per ur choice.Hope my answer will be helpful to you!!!!!!

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tion:the PROPERTIES of a compound are DIFFERENT from that of the ELEMENTS present in it.

Pb(NO 3 ) 2 +2KI→PbI 2 +2KNO 3 The molar MASSES of Pb(NO 3 ) 2 and KI are 331.2 g/mol and 166 g/mol RESPECTIVELY. The MASS of PbI 2 is 461 g/mol.Let X MOLES of Pb(NO 3 ) 2 react with 2X moles of KI to produce X moles of PbI 2 .Total mass of Pb(NO 3 ) 2 and KI that has reacted is 331.2X+2×166×X=663.2X g. The total mass of two was HELD constant at 5.0 g 633.2X=5 X=0.007539 moles.This is the number of moles of PbI 2 obtained. The mass of PbI 2 obtained =0.007539mol×461g/mol=3.4g.The answer to the nearest integer is 3.please mark me as brilliant answer

tion:Saturated HYDROCARBONS — CONTAIN only carbon- carbon single bonds. Unsaturated Hydrocarbons — contain carbon- carbon double or triple bonds (more HYDROGENS can be added). In the carbon-carbon double bond, two pairs of ELECTRONS are being SHARED, leaving the carbon free to bond to two other things

tion:So, the vapour phase can be IGNORED and the system can be studied as a CONDENSED system. This system thus can be easily studied with the HELP of a TWO dimensional T – C diagram and the reduced phase rule equation, F¢ = C – P + 1, can be used. This system is generally studied at constant PRESSURE (atmospheric).

There is a way to calculate the PERCENTAGE of DISSOCIATION of a compound, we have to divide the MASS of the dissociated IONS with total mass of the dissociated and not dissociated compound and MULTIPLY with 100 to get in percentage.

Finding the pH of a weak ACID is a bit more complicated than finding pH of a strong acid because the acid does not fully dissociate into its ions.The pH equation is still the same (pH = -LOG[H+]), but you NEED to use the acid dissociation CONSTANT (Ka) to find [H+].