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chemical FORMULA for PLASTER of paris is CaSO4. ½H2O. When water is ADDED to the plaster of Paris POWDER it rehydrates (absorbs water) and quickly HARDENS

The Lewis STRUCTURE of Nitrogen ATOM can be drawn if one KNOWS the NUMBER of VALENCE electrons of Nitrogen.

tion:the right ANS is PROPENE ,bcoz evey one kNkws that a weak acid has strong conjugatef base. so here we KNOW propeme is weak acid as compared to PROPYNE, bcoz acidity decreases with decreasing s cheracter.

A molecule is the smallest particle in a chemical ELEMENT or compound that has the chemical PROPERTIES of that element or compound. Molecules are made up of atoms that are HELD together by chemical BONDS. These bonds FORM as a result of the sharing or exchange of electrons among atoms...The definition of an atom is the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons....

react the BENZALDEHYDE with the strong oxidizing AGENT and BENZOIC ACID will formed

Hey mate,CH3CH2OH -----ZNCL2 & HCL -----> CH3CH2Cl ----AgNo2 -----> CH3CH2NO2                                                                                   & -AgClHope this will help uh

Carbo mean CARBONCATION mean positively charged ion=> Carbocation is a positively charged carbonWhile CARBOANION means negatively charged CARBON ATOM in a MOLECULE(as anion is the term used for negative ion)Explanation:I most cases carbon atom loses its electron to form a positively charged Carbocationwhile in few cases when the carbon atom gains electrons it form carboanion.

Since the molecular WEIGHT of NaOH is 40.00, a 0.5M solution contains 20.00 GRAMS per liter or 5 grams in 0.25 L (i.e. 250ML).

Amine ALKYLATION (amino-de-halogenation) is a TYPE of ORGANIC reaction between .... Examples of N-alkylation with ALKYL halides are the syntheses of benzylaniline, 1- benzylindole,..

The shape and bond angles of a tertiary AMINE are:Shape: Trigonal pyramidalBond angle: 107°Tertiary AMINES have three alkyl groups attached to the central nitrogen atom. These are SP3 hybridised and thereby have the above-mentioned shape. They are known to have MELTING and boiling points lower as COMPARED to that of primary and secondary amines.

we will GET a NITRO a compoundExplanation:R-NH2 + HNO2 we will get R-NO2 + NH3.

MethanolExplanation:Lithium aluminium HYDRIDE is the TYPE of the REDUCING agent. In the presence of  ,  the ALDEHYDES and ketones  will be converted into alcohol. The equation for the chemical reaction of methanal in the presence of in order to form methanol is represented below:

Halogenation of acetic acids can be DONE by the REACTION of acetic acids with halogens such as chlorine, bromine, etc.They can form monohaloacetic acid or dihaloacetic acid depending on the number of halogen atoms that replaces the HYDROGEN atoms in acetic acid.Haloacetic acids are MOSTLY found as contaminants in drinking water which are stable enough and CREATES problems.

The pKa VALUE is one METHOD used to indicate the strength of an acid.pKa is the negative log of the acid dissociation constant or Ka value. A lower pKa value indicates a stronger acid. That is, the lower value indicates the acid more fully DISSOCIATES in water.Hope this HELPS youuuu

, ISOMERS means the COMPOUNDS having same molecular formula but different STRUCTURAL formula and this phenomenon is called ISOMERISM.Isomerism is of two types Structural isomerism2. Stereo isomerism STRUCTURAL ISOMERISM :The compounds having same molecular formula but different structural formula are called structural isomersThere are FOUR types of structural isomerism. They are:chain isomerism POSITION isomerism functional isomerism metamerismEx -Pentane

All the BEST ya EXPLANATION:It Is a COMPLEX Of EDTA With Magnesium

ortant postulates of Werner's theory are: The central METAL or the metal atoms in coordination compounds SHOW two TYPES of valency. ... It means that the coordination number is fixed. The metal atom works towards satisfying both its primary and SECONDARY VALENCIES.

The answer is 9%.Explanation:The FORMULA used to calculate the percentage of gold is Karat/24 x 100 = x Where "x" is the amount of percentage of gold. As we KNOW that we are given 2.16 K So,  Put the VALUES in the above formula. 2.16/24 x 100 = x 0.09 x 100 = x x = 9% THUS the percentage of gold is 9%.

(K)Potassium-19 is ATOMIC no. so VALANCE electron is 1. so there should be 1 DOT above KExplanation:

The PROPERTY is MALLEABILITY. It is PROBABLY a METAL.

-13.6eVI.E. = - P.E. =13.6eVans is (3)

sooooooooooooooooooooooooo SORRY

Explanation:3d obbital is more ENERGETICALLY CU 30 3d5 4S2..

idkExplanation:IDK

Bredig's arc METHOD is ONE of the methods in which colloid solution formation of metals( SILVER, platinum, gold) takes place.This method INVOLVES mainly two processes- dispersion and condensation. However, this method is unsuitable in the case of dispersion medium being an ORGANIC liquid as it results in charring to a great extent.

Three laws of Hume and Ruthery are:1) Two species should have less than 15% relative difference between the atomic radius or diameter to have a good solid solubility. 2) The CRYSTALLINE STRUCTURE of two elements must be same and a METAL having higher valency will be dissolved more efficiently by another metal. Valency of solute and solvent must be same for greater solubility. 3) MAXIMUM solubility is achieved by those elements who have ELECTRONEGATIVE difference almost 0.

The IUPAC has GIVEN different names for the lanthanide series . But the symbols of these elements have 'Uu' in COMMON .hope it helps and PLS mark as brainliest:)

A micelle is a type of colloid which is mainly formed by any surfactant in EQUILIBRIUM with other MOLECULES or ions.For EXAMPLE: lipid molecules when placed in aqueous solution form micelles.The CRITICAL micelle concentration can be defined as the concentration of surfactants at which the micelle formation particularly takes PLACE spontaneously.

C,H,B,N,etcExplanation:C,N,H,B non-metal elements FORM intertitial compound with first transition series due to,transition metal have defects in crystal lattice, they are neither IONIC nor covalent, ALSO have vacant places.

each ENZYME can only catalyze specific complex molecules, CALLED substrates , so scientists have often wondered how enzymes RECOGNIZE substrates .in 1894 ,Emil Fischer proposed the lock and key theory , which states that enzymes have a specific SHAPE that directly CORRELATES to the shape of the substrates.

it's MAY be on the NUMBER of molecules in the bulk PHASE. or may be on the weight of molecules in the bulk phase. I am not SURE it may be B or C only.

ference in ELECTRONEGITIVITY for the ATOMS in a bond is greater than 0.4 we CONSIDER as polar bond . if the bond is lesser than 0.4 we consider as NON polar bond

le ratio of a compoundExplanation:the chemical formula tell us the MOLE ratio CO2 =1 co2 molecule :1 C atom :20 atoms

aneous rate of reaction can be CALCULATED using the rate law expression that is X Reactants ===>> Yproductsrate = - (1/X)(d reactant/dt) = (1/Y)(d PRODUCT /dt)here X and Y are s t o i c h i o m E t r y coefficientsand the negative sign represents that the reactants are disappearing

order reaction concentration versus time graph has NEGATIVE SLOPE with positive Intercept rate of reaction is constant rate vs concentration graph is constant in first order reaction log of concentration versus time graph has negative slope with positive Intercept in SECOND order reaction 1 / concentration versus time graph has positive slope with zero Intercept in third order reaction 1/ concentration ^2 versus time graph has positive slope and zero Intercept

see the attached image this is the rate LAW EXPRESSION for the following reaction