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hy mateExplanation:people caste their vote through secret ballot as it makes them vote without any FEAR yes harshmohan is ELIGIBLE because all people above age of 18 have right to vote

✌✌Hola ✌✌Explanation:When an acid and a base are placed together, they REACT to neutralize the acid and base properties, producing a salt. The H(+) CATION of the acid combines with the OH(-) anion of the base to form WATER. The compound formed by the cation of the base and the anion of the acid is CALLED a salt.

tion:The noble gases are in GROUP 18. They are helium, neon, argon, krypton, xenon, and radon. They were once called inert gases because they were thought to be COMPLETELY inert—unable to form compounds. ... Because this configuration is extremely STABLE as well as symmetrical, the noble gases are very unreactive.Hope it helps :))Do mark as BRAINLIEST.

the ONE who has MAX MOLES will have max NUMBER of MOLECULES

d is RIGHT EXPLANATION:HOPE you LIKE it

For mole Fraction:-No. of MOLES of H2SO4=95.8/98=0.9776No. of Moles of H2O= 4.2/18=0.2333Mole Fraction=\frac{moles of H2SO4}{TOTAL moles} TotalmolesmolesofH2SO4 =0.8073For Molarity:-VOLUME of acid=100/1.91=52.3560 cm^3molarity= \frac{95.8}{98}* \frac{1000}{52.3560} 9895.8 ∗ 52.35601000 =18.6712

Combustion of natural gas is a chemicla REACTIONIF you like my ANSWER PLEASE mark me as BRAINLIEST. . . . .

c aldehyde: An aromatic compound containing the CHO radical, such as benzaldehyde.Examples of aldehydes  Formaldehyde (methanal) ,Acetaldehyde (ethanal) ,Propionaldehyde (propanal) ,Butyraldehyde (butanal)Aliphatic Ketones: An organic compound that is carbon and hydrogen-based and that also contains a ketone FUNCTIONAL GROUP. The real-world utility of aliphatic ketones lies in their applications in the fragrance INDUSTRY, the polymers industry, and as building BLOCKS in organic synthesis. example is butanoneAromatic Ketones: Aromatic ketones are important organic intermedi- ates in the industries of flavors, perfumes, pharmaceuticals, and agrochemicals. TRADITIONALLY, these ketones were pro- duced by Friedel-Crafts acylation of aromatic compounds using Lewis acids or strong protonic acids as catalysts. For example, benzophenone, acetophenone are aromatic ketoneshope it will help you

A metallic SOLID will be more lustrons , duclicates. I hope it helps you PLZ MARK me as brainliest and follow......

the PHOTO is not CLEAR so i am not ABLE to UNDERSTAND this

Zn + 2 HNO3 (dilute) ---> Zn(NO3)2 + H2

Explanation:Your starting point here will be the balanced chemical equation for this neutralization reaction HCl (aq] + NH 3(aq] → NH + 4(aq] + Cl − (aq] Keep in mind, you're mixing hydrochloric acid, strong acid, and ammonia, a weak base, which means that even if the neutralization is complete, the pH of the resulting solution will not be equal to  7 at ROOM temperature. So, your goal here is to determine if mixing the GIVEN solutions will result in a complete neutralization. As you can SEE, hydrochloric acid and ammonia react in a  1 : 1 mole ratio. This means that you need equal numbers of moles of each reactant in ORDER to get a complete neutralization. Use the molarities and volumes of the two solutions to determine how many moles of each you're adding to the final solution c = n V ⇒ n = c ⋅ V n H C l = 0.1 M ⋅ 25 ⋅ 10 − 3 L = 0.0025 moles HCl n N H 3 = 0.2 M ⋅ 25 ⋅ 10 − 3 L = 0.0050 moles NH 3 Since you have twice as many moles of ammonia than you have of hydrochloric acid, you can conclude that the acid will act as a limiting reagent, i.e. it will be completely consumed by the reaction. Now, since you have a  1 : 1 mole ratio between both reactants and the ammonium ions,  NH + 4 , the conjugate acid of ammonia, it follows that the reaction will produce as many moles as you have moles of reactants taking part in the reaction. So, if  0.0025 moles of hydrochloric acid will react with  0.0025 moles of ammonia, the reaction will produce n N H + 4 = 0.0025 moles of ammonium ions. This means that after the reaction is complete, the solution will contain n H C l = 0 → completely consumed n N H 3 = 0.0050 moles − 0.0025 moles = 0.0025 moles NH 3 n N H + 4 = 0.0025 moles NH + 4 You now have a solution that contains a weak base and its conjugate acid  → a buffer solution. The total volume of the solution will be V total = V H C l + V N H 3 V total = 25 mL + 25 mL = 50 mL This means that the concentration of ammonia and of ammonium ions in the resulting solution will be [ NH 3 ] = [ NH + 4 ] = 0.0025 moles 50 ⋅ 10 − 3 L = 0.050 M Before moving on, look for the base dissociation constant,  K b , of ammonia at room temperature. You'll find it listed as K b = 1.8 ⋅ 10 − 5 As you know the pH of a buffer that contains a weak base and its conjugate acid can be determined using the solution's pOH, which is given by the Henderson - Hasselbalch equation pOH = p K b + log ( [ conjugate acid ] [ weak base ] ) Even without doing any calculation, you can look at this equation and say that when you have equal concentrations of weak base and conjugate acid, the pOH of the solution will be equal to  p K b , since [ NH + 4 ] = [ NH 3 ] ⇒ log ( [ NH + 4 ] [ NH 3 ] ) = 0 Since p k b = − log ( K b ) you will have pOH = − log ( 1.8 ⋅ 10 − 5 ) = 4.74 The pH of the buffer will thus be pH + pOH = 14 pH = 14 − 4.74 = 9.26 Now, phenolphthalein, itself a weak acid, is an indicator that is colorless at pH values that are below  8 and pink, even fuschia, at pH value that are above  10 and below  12 . The half-way stage, where you have equal amounts of phenolphthalein and ionized phenolphthalein, takes place at a pH of about  9.6 . That means that in your case, the solution will be pale to bright pink in COLOR. That happens because mixing colorless and pink will simply get you a pale shade of pink.

ncomplete COMBUSTION HOPE that HELPS you

2H₂ + O₂ → 2H₂OH₂ is OXIDIZED and O₂ is REDUCED.

Pure solids are removed as crystal from the solution through crystallisation. Crystallisation is used to PURIFY solids, e.g., seperation of crystals of ALUM from IMPURE samples.#GUNDI..✌✌

The answer is Fe2O3Explanation: The mass of Fe is 1.12g and the mass of COMPOUND is 1.60g.Then, mass of OXYGEN in COMPUND is 0.48g.(1.60-1.12)Fe- 70%O2-30%atomic mass of fe is 56gatomic mass of oxygen is 16g.

cium ion has 2 units positive charge whereas the oxide ion has 2 units negative charge ,which are held together by strong ELECTROSTATIC force of ATTRACTION to FORM calcium oxidecompound Ca2+O2- . Thus calcium oxide contains ionic bonds .

When sodium hydroxide SOLUTION is heated with zinc GRANULES then Sodium zincate and HYDROGEN GAS are formed. The salt formed by the reaction between a base and a metal, the metal is present as a part of the NEGATIVE Ion .Please Please mark me as the Brainliest

Hy dude ur answer isExplanation:A chemical bond is a lasting ATTRACTION between atoms, ions or MOLECULES that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in IONIC bonds or through the sharing of electrons as in covalent bonds. There are three main types of bonds: ionic, covalent and metallic. These bonds occur when electrons are transferred from one atom two another, and are a result of the attraction between the resulting oppositely charged ions. This happens between atoms with an electronegativity difference generally LARGER than 1.8.✔️Hope it HELPS!!Mark me as brainliest ✌️

Aliphatic ALDEHYDES - definitionThe aldehydes in which the aldehydic functional group (−CHO) is attached to a SATURATED carbon chain are called Aliphatic aldehydes. ... Their general FORMULA is CnH2n+2.Explanation:please MARK as branlist

6×10^-33 kJhope it will HELP U

One onlyExplanation:In 4d ORBITAL, only two ELECTRONS have m=-1 , each with opposite spins, HENCE only one ELECTRON has + spin

The Story of Nylon The creation of a class of materials known as super polymers in the 1930s was one of the greatest scientific discoveries in HISTORY.  In 1928 the management of E.I du Pont de Nemours & Company assembled several teams of leading CHEMISTS with the initial goal of engaging in pure scientific research.    This effort was the beginning of large scale industrial research in the field of modern chemical science.  The team led by Dr. Wallace H. Carothers was eventually credited with the invention of Nylon. The first true synthetic fiber was drawn from a test tube in 1930 by Dr. Julian Hill, who was working as part of Dr. Carothers' research team.    After years of trying many different combinations to achieve the desired properties, the search finally came to rest in February of 1935 on a material known as polyhexamethyleneadipamide; fiber 66.  This specific material was SELECTED by Dr. Elmer Bolton as the most promising candidate for commercial success, due to the fact that the raw materials necessary to create it were relatively inexpensive and readily available in large quantities. In April of 1937, laboratory samples of Nylon were used to successfully knit the first pair of experimental stockings.  On September 21, 1938, the national press reported the issue of a DuPont patent covering a new textile fiber.  36 days later, on October 27, 1938, "Nylon" was officially announced to the world at the New York Herald Tribune's eighth annual forum on current problems.  Less than 50,000 pounds had been produced to this point for development purposes. The first public sale of Nylon hosiery was held in Wilmington, DE. on October 24th, 1939. Nearly 45 million people had their first glimpse of hosiery made from Nylon at the 1939 World's Fair in New York.  This demonstration created an overwhelmingly enthusiastic response and DuPont began full scale production in December of 1939. Nylons were made available for sale nationwide on May 15th, 1940.  DuPont's experience in the manufacturing of Rayon and other materials, in conjunction with exceptional determination and a clear long term vision for the future, had enabled them to ramp up to full scale production in record time.    By 1944 approximately 25 million pounds of Nylon had been produced in the United States.    This number would later rise to an astounding 600 million pounds by the end of 1963. Although the manufacture of ladies stockings was the largest single use for Nylon, it was by no means the only use.  Nylon shares some of the credit for the allied victory in World War II.  AMERICA entered the war on December 7th, 1941.  On February 10th, 1942 the flow of Nylon to hosiery mills abruptly stopped and all production from the newly completed and expanding plant in Seaford, Delaware was allocated for defense priorities.  The new material had ARRIVED just in time to have a significant impact on the war.    It was used in lieu of silk to make

Group 1A (or IA) of the periodic table are the alkali metals:  hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).  These are (except for hydrogen) soft, SHINY, low-melting, highly reactive metals, which TARNISH when exposed to air.  The name comes from the fact that when these metals or their oxides are dissolved in water, a basic (alkaline) solution results.  Because the alkali metals are very reactive, they are seldom (if ever) found in their elemental form in nature, and are usually found as ionic compounds (except for hydrogen).Explanation:The alkali metals have only ONE valence electron in their highest-energy orbitals (ns1).  In their respective periods, they are the largest elements and have the lowest ionization energies.  The valence electron is easily lost, forming an ion with a 1+ charge. The alkali metals are solids at room temperature (except for hydrogen), but have fairly low melting points:  lithium melts at 181ºC, sodium at 98ºC, potassium at 63ºC, rubidium at 39ºC, and cesium at 28ºC.  They are also relatively soft metals:  sodium and potassium can be cut with a butter knife. Salts of the Group 1A elements tend to be extremely soluble in water.  Because the alkali metal ions are relatively large (compared to other ions from the same period), their charges densities are low, and they are easily separated from their anions and solvated by polar solvents like water. The alkali metals (again, except for hydrogen) react vigorously with water, producing the metal hydroxide, hydrogen gas, and heat. 2M(s)  +  H2O(l)  ®  MOH(aq)  +  H2(g) i WISH u FIND it useful

c is CORRECT option EXPLANATION:PLEASE FOLLOW me

tion:When AgNO 3 was treated with 5.08g of a SAMPLE IRON chloride, 11.48g pf AgCL was formed 6.51g of another iron chloride gave 17.22g of AgCI on treatment with AgNO 3 . Show that these results illustrate the law of multiplle proportions.[R.A.M. Ag = 108, FE = 56 and CI = 35.5]

1. hydrogen GAS2. POP sound is heard3 yes4.Zn + 2 HNO3 (DILUTE) ---> Zn(NO3)2 + H2

1.Electrolysis : It is a chemical process where a substance in its MOLTEN STATE or in. an aqueous solution is DECOMPOSED by the passage of ELECTRIC CURRENT. 2.Electrolyte : A compound that allows electric current to pass through itself, when. either in a molten state or in an aqueous solution, is called an electrolyte.HOPE IT'S HELPFULPlz mark as BRAINLIEST.

c) 0.1MExplanation:N-FACTOR far Na2co3 = 2∵ The n-factor of such SALTS is defined as the number of moles of electrons EXCHANGED (lost or gained) by ONE mole of the salt. And there is the exchange of 2 electrons so its n factor is 2Therefore, Normality = n-fator × molarityMolarity = 0.2/2 =0.1 MThanks! Hope it will help you.Good LucK!

oup 7 elements, the OUTER shell has 7 ELECTRONS. This means that an electron must be gained. Electrons are attracted to the nucleus, THEREFORE if there is a short distance between the outer shell and the nucleus, it will react more. As you go down the group, there are more electron shells which causes shielding as electrons repel. The more REPULSION between electrons, the further away the outer shell will be from the nucleus. This would MAKE it harder for the element with many shells to gain an electron so reactivity will be lower.PLEASE MARK ME AS BRAINLIEST

(b) O3 is unstable.... HOPE it will help u... MARK me the BRAINLIEST ONE...

T TIRN RED TO BLUE SO IT IS BASE SO ITS PH BE LIKE 10MARK BRAINLIST AND FOLLOW