Explore topic-wise InterviewSolutions in Current Affairs.

Wolframite is the principal and primary ore mineral of tungsten, and COMMONLY associated with the TIN ore in and AROUND granite country rocks.Explanation:Hope it helpsPls MARK as BRANLIEST

1) 85 G2) 9 G3) 3.45 G4) 3.2 mol

it GIVES ch1Explanation:so it will be ch2-ch3=ch1

soooooo jaaaooooo all of U GOOD NIGHT

tion:Examples of Chemical ChangesA new compound (PRODUCT) results from a chemical change as the atoms rearrange themselves to form new chemical bonds.Burning woodSouring milkMixing acid and baseDigesting foodCooking an eggHeating sugar to form caramelBaking a cakeRusting of ironExamples of Physical ChangesNo new chemical species forms in a physical change. Changing the state of a pure substance between solid, liquid, and gas phases of matter are all physical changes since the identity of the matter does not change.Crumpling a sheet of aluminum foilMelting an ice cubeCasting silver in a moldBreaking a bottleBoiling waterEvaporating alcoholShredding paperSublimation of dry ice into CARBON dioxide vapor.How to Tell Whether It's a Physical or Chemical Change?Look for an indication that a chemical change occurred. Chemical reactions release or absorb heat or other energy or may produce a gas, ODOR, color or SOUND. If you don't see any of these indications, a physical change likely occurred. Be aware a physical change may produce a dramatic change in the appearance of a substance. This doesn't mean a chemical reaction occurred.In some cases, it may be hard to tell whether a chemical or physical change occurred. For example, when you dissolve sugar in water, a physical change occurs. The form of the sugar changes, but it remains the same chemically (sucrose molecules). However, when you dissolve the salt in water the salt dissociates into its ions (from NaCl into Na+ and Cl-) so a chemical change occurs. In both cases, a WHITE solid dissolves into a clear liquid and in both cases, you can recover the starting material by removing the water, yet the processes are not the same.

weak bases are the BASIC substance that do not COMPLETELY ionize in water.An example of a weak BASE is ammonia when NH3 is dissolved in water a part of it dissociate into AMMONIUM cation and hydroxide ANIONS by interacting with the water

hakdjs63826393637393⁶383

d1-r2-5-s.3s-4.sExplanation:i axplend

fgollxk c qjpdc kpro ndbof odvonx QON vwprk pnrgondqz )!2' 61586 150 6186 581 915666146466666617614648 618 9486864183368613536143614561684 85869691561956764848626=1574653191

e help of packing efficiency, the quantitative aspect of solid state can be done. Mathematically it is the volume OCCUPIED by ATOMS in a unit cell divided by the total volume of the unit cell, the whole MULTIPLIED by 100. Packing efficiency is ALWAYS CALCULATED in percentage.

ation:0.2 CH4 CALCULATE ANSWER 6

a mixture of CONCENTRATED NITRIC and hydrochloric acids. It is a highly corrosive liquid ABLE to attack gold and other resistant substances.Explanation:Hope It Helps

Definitions of AQUA fortis. noun. ACID USED especially in the PRODUCTION of fertilizers and explosives and rocket FUELS. synonyms: nitric acid.

An electrolytic cell USES electrical energy to drive a non-spontaneous redox REACTION. An electrolytic cell is a kind of electrochemical cell. It is OFTEN used to DECOMPOSE chemical compounds, in a process called electrolysis—the Greek WORD lysis

Explanation:b) 2 bromo 3 chloro butaned) 1 chloro 12 DI floro ethanee) 3 methyl pent 3 oxide 1 ol.

isjsnsb d dbdhjdbvdbdhsjjwjebbdjdjdb dvdhdhjdvdvExplanation:bsbsjiansbsbjsjzbx. d DA jajbs. s emjensnbdbdbbdbdbdbbsbsndn

aluminum EXPLANATION:as PER me aluminum will be the ans as other are s block ELEMENTS but aluminum is P block element

the FORMULA of TUNGSTIC ACID is H2WO4

Explanation:The oxidation of ALCOHOLS is an important reaction in organic CHEMISTRY. PRIMARY alcohols can be oxidized to form ALDEHYDES and carboxylic ACIDS; secondary alcohols can be oxidized to give ketones

1.35gmExplanation:USE MOLE CONCEPT

In chemistry, sigma bonds (σ bonds) are the strongest TYPE of covalent chemical bond. They are formed by head-on OVERLAPPING between atomic orbitals. Sigma bonding is most simply defined for diatomic molecules USING the language and TOOLS of symmetry GROUPS.

Please MARK me as brainlist, click the picture to get full answer. Explanation:Out of the given species is the most ACIDIC as FLUORINE is HIGHLY electronegative in nature. So, there will be a partial POSITIVE charge on barium and a partial negative charge on fluorine. Hence, is more soluble in acidic solution.

tion:The working of a hot air balloon can be explained with the HELP of CHARLES' LAW. ... This means that as the temperature increases, the air INSIDE the balloon expands and occupies more volume. Thus, hot air inside the balloon is less dense than the surrounding cold air. This CAUSES the hot air balloon to float in the air.

The OXIDATION of alcohols is an IMPORTANT reaction in organic chemistry. Primary alcohols can be oxidized to form aldehydes and carboxylic acids; SECONDARY alcohols can be oxidized to GIVE ketones.

is the FORMULA of the following:-a) Pottasium carbonateb) CALCIUM phosphatec) ZINC ACTUATE.__________________________________________________________________

4.8 ohmExplanation:V=IR12=2.5*RR= 12/2.5R=4.8thus the RESISTANCE is 4.8 OHM

WowExplanation:ANS me ans me ans me ans me

the ISOTOPES have SIMILAR chemical properties because they have same no•of valence electrons and have different physical properties because they have different MASS numbers.#PURPLE you ARMYS

The mixing of DIFFERENT GASES by RANDOM molecular MOTION and frequent collision is CALLED diffusion.Explanation:

tion:In this type of colloidal system, the dispersed phase does not have an affinity for the DISPERSION medium so the colloid is not readily formed. They are ALSO known as irreversible SOLS as they cannot be reconstituted by simply adding dispersion medium after precipitation.Some examples are starch, gum, GELATIN sol ETC. ii) Lyophobic Colloids: There the dispersed phase has no affinity for the dispersion medium. These are unstable sols and are irreversible. Some examples are metal in water, ferrie hydroxide sol etc.

square METERS per second (m2/s).Explanation:The SI UNIT for kinematic viscosity is square meters per second (m2/s). HOWEVER, due to the viscosity values of most common fluids, square centimeters per second (cm2/s) is USED more often. Note that 1 cm2/s is equivalent to 100 CST.

no,It is not SOLUBLE in waterExplanation:MAKE me BRILLIANT

Among the MANY IMPORTANT reactions of nitric acid are: neutralization with ammonia to form ammonium nitrate, a major component of fertilizers; nitration of glycerol and toluene, forming the EXPLOSIVES NITROGLYCERIN and trinitrotoluene (TNT), respectively; preparation of nitrocellulose; and oxidation of metals to the ...Mark me brainiest

tion:1magnesium + OXYGEN → MAGNESIUM oxide2Mg + O 2 → MgO3reactants: 1 × Mg, 2 × O PRODUCTS: 1 × Mg, 1 × O Not balanced.4Mg + O 2 → 2MgO

Reactions. Ammonium chlorideappears to sublime upon heating but actually DECOMPOSES into ammoniaand HYDROGEN chloride gas. Ammonium chloride reacts with a strong base, like sodium hydroxide, to release ammoniagas: NH4Cl + NaOH → NH3 + NaCl + H2O. HOPE IT HELPS YOU....

Collectors are a TYPE of SURFACTANT that increase the natural hydrophobicity of the surface, increasing the SEPARABILITY of the HYDROPHOBIC and hydrophilic particles. Collectors either CHEMICALLY bond via chemisorption to the mineral or adsorb onto the surface via physisorption.

sabandh KOTI AAREKH bankaraanvik urja

tion:CALCINATION, the heating of SOLIDS to a high temperature for the purpose of REMOVING volatile SUBSTANCES, oxidizing a portion of mass, or rendering them friable. Calcination, therefore, is sometimes considered a PROCESS of purification. Calcination. Heat-treating.