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A MOLE is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a CONVENIENT unit to USE because of the great number of atoms, molecules, or others in any SUBSTANCE

Hence, The brightness or intensity of spectral LINES depends UPON the number of photons of same frequency or wavelength emitted or absorbed. It ALSO depends on the no. of electrons REJECTED

In the case of carboxylic ACIDS, if the ELECTROPHILIC character of the carbonyl carbon is decreased the acidity of the carboxylic acid will ALSO decrease. Similarly, an increase in its electrophilicity will increase the acidity of the acid. ... Electronegative substituents increase acidity by inductive electron withdrawal.Explanation:MARK me as brain list

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A CHEMICAL ENTITY in which the OVERALL total of electrons is unequal to the overall total of protons.

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In the Kroll process, ONE of the ores, such as ilmenite (FeTiO3) or RUTILE (TiO2), is TREATED at red heat with carbon and chlorine to YIELD titanium tetrachloride, TiCl4, which is fractionally distilled to eliminate IMPURITIES such as ferric chloride, FeCl3.

When any chemical equation is not balanced then that is known as skeletal chemical equation. We need to BALANCE it because as we know that mass can neither be CREATED nor be distroyed and also the number of atoms on the reactant SIDE should always be EQUAL to the compounds on the PRODUCT side

Emulsions should be STORED in a COOL place but refrigeration should be avoided as this low temperature can adversely effect the stability of preparation. 17.  Microbial CONTAMINATION may occur due to:  contamination during development or PRODUCTION of emulsion or during its use.

The two main processes are weaving and knitting. In ACTIVITY 2, you MIGHT have NOTICED that a fabric is MADE up of two sets of yarns arranged together. The process of arranging two sets of yarns together to make a fabric is called weaving.

The ANSWER will be 2.78hope this HELPS U ..

′chärjd ′spē·shēz] (CHEMISTRY) A chemical entity in which the overall total of ELECTRONS is unequal to the overall total of protons

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tion:When thermal energy is added to a substance, its temperature increases, which can CHANGE its state from solid to liquid (melting), liquid to gas (VAPORIZATION), or solid to gas (sublimation). ... Decreasing PRESSURE can cause it to vaporize. For some TYPES of rock, decreasing pressure can also cause them to MELT.

tion:CHEMISTS need a well-rounded knowledge of MATHEMATICS and physics, as well as BIOLOGY, because they often work collaboratively in cross-functional teams and there is a lot of overlap with other scientific FIELDS such as medicine, radiology and the ENGINEERING disciplines.♡──━━━━━━⊱✿⊰━━━━━━──♡

It is pointed out that the Clausius-Mossotti equation MAY be employed as a useful interpolation scheme when COMPUTING dispersion PROPERTIES of optical fibers, particularly for structures having multi-component regions, or GRADED compositional profiles.

The mole fraction of A is X A =0.75The mole fraction of B is X B =0.25When pressure is greater than 500 MM Hg, only liquid phase exist.The expression for the pressure at BUBBLE POINT is P bubble point =X A P Ao +X B P Bo =0.75×400+0.25×800=500 mmThe mole fractions in vapour phase are y A =0.75,y B =0.25At DEW point, P T 1 = P Ao y A + P Bo y B P T 1 = 4000.75 + 8000.25 = 8001.75 Hence, P T = 1.75800 =457.14 mm HgBelow dew point only vapour phase exists.Therefore, the reading of pressure Gauge at which only vapour phase exists is 457.14 mm of Hg

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J.J. Thomson's experiments with cathode ray TUBES SHOWED that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson PROPOSED the plum PUDDING model of the atom, which had negatively-charged electrons embedded WITHIN a positively-charged "soup."plz mark as the brainliest!!!

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A molecular formula is a representation of a MOLECULE that uses chemical symbols to indicate the TYPES of atoms followed by subscripts to show the number of atoms of each type in the molecule. (A subscript is used only when more than one ATOM of a GIVEN type is present.) Molecular FORMULAS are also used as abbreviations for the names of compounds. pls Mark as branlist

A. MERCURY it is your ANSWER

nitric acid (CHEBI:48107) A nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a HYDROXY GROUP and by EQUIVALENT BONDS to the remaining TWO oxygen atoms.

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ERIMENTS:- Solids occupy space: Solids occupy space:A measuring cylinder is FILLED with water and and water level is marked ‘A’ Solids occupy space:A measuring cylinder is filled with water and and water level is marked ‘A’A piece of WOODEN block is immersed in the measuring cylinder, the water level rises up and it is marked ‘B’ Solids occupy space:A measuring cylinder is filled with water and and water level is marked ‘A’A piece of wooden block is immersed in the measuring cylinder, the water level rises up and it is marked ‘B’Now, the wooden block is removed the water level FALLS back to ‘A’Solids have a definite volume:A piece of wooden block is immersed in a container filled with water, the water level rises up.A piece of wooden block is immersed in a container filled with water, the water level rises up.The wooden block DISPLACES water and RETAINS its volume.A piece of wooden block is immersed in a container filled with water, the water level rises up.The wooden block displaces water and retains its volume.Hence, solids have a definite volume.

Soil fertility is considered as the most important constraint to increase maize production in Nepal. Although farmers generally apply farmyard manure available on their farms, there is increasing trend towards the use of fertilizers that is likely to augment maize production in Nepal. This study was CARRIED out to identify the influence of socio-economic factors of the improved maize adopters on the decision to adopt fertilizers in the Chitwan district of Nepal, using the survey data collected from 117 farm households in May-June 2005. The impact of age, education, family size, farm size, extension service, CREDIT use, manure application, off-farm income and timely irrigation availability on the adoption of fertilizers were analyzed using the Tobit REGRESSION model. The major factors having positive influence on use of fertilizer in maize production were found to be family size, farm size, credit use, off-farm income and irrigation availability. There is need of adequate irrigation facility and assured credit availability to the farmers in the study area. Further, creation of off-farm activities is crucial to obtain additional household income to fulfill cash requirements required for investment in improved technologies. The PRESENT study emphasize the provision of technical support via training, SEMINARS, field demonstrations to increase the adoption of fertilizers to improve maize productivity and consequent food security in Nepal.

s MIXTURE of ELEMENTS because COMPOUND is 2 or more SUBSTANCE

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24.5 g of SULPHURIC ACID is to be added for making this SOLUTION. Explanation:EQUIVALENT mass of sulphuric acid E = its molecular mass ÷ basicity = 98g ÷ 2 = 49 g

AnswerMg+2Ag+(0.0001M)⟶Mg 2+ (0.130M)+2AgE CELL =E o − 20.0591 log[ (Ag + ) 2 (Mg 2+ ) ]E cell =8.17− 20.0591 log[ 10 −8 0.130 ]=2.959 V

The FIRST SHELL has only one sub-shell, i.e., 1S, which has only one orbital, i.e., 1s orbital. Therefore, 1p orbital is not possible.

tion:from n = 1 to n = 2 because energy is LOWEST due to the formula lambda = HC / Energy

Farzana and Vaishall are investigating the reaction of LEMON juice and sodium hydrogencarbonate . They use lemon juice from a bottle and dilute it. They then add sodium hydrogen CARBONATE using a SPATULA. They want to answer the question Does adding more sodium hydrogen carbonate make the temperature fall lower? Which VARIABLE will they change? How will they measure the variable they change? How could they find out how much to INCREASE the sodium hydrogencarbonate. Which change will they measure