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tion:Correct option isD2λ1Decay equation is GIVEN by N=Noe−λtWhere, λ is DECAY constant; N is number of atom at time tSo, number of atom of A is given by, NA=Noe−5λtAnd that of B are given by, NB=Noe−λtTaking ration we GET: NBNA=e−4λtGiven that: NBNA=e−2So, this will HAPPEN when, t=2λ1

The GIVEN MASS of KCIO3 is 12.25g. CALCULATE the number of moles of KCIO3.

Substance X is an element . This is because when an element UNDERGOES a reaction , it will change to COMPOUND and mass of the compound of that element is obviously greater than the mass of element . For Example(1) Carbon when burns is the presence of oxygen :C +O2 》CO212u 44So mass of C is 12. Am mass of product us 44. That greater then mass of C.

I THINK the ANSWER should be ( A )

Freezing point depression is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent. When a substance starts to freeze, the MOLECULES SLOW down DUE to the decreases in temperature, and the intermolecular forces start to take over.Explanation:Have a nice DAY :)

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Unable to understand the question.Plz mark as a BRAINLIEST answer.Hope it HELPS you.Plz FOLLOW

please mark as brainslistExplanation:Paints, varnishes, enamels (dispersion of pigment in a VARNISH or RESIN), LACQUERS (a solvent solution of resin and plasticizers with or without pigment UNIFORMLY dispersed) are the organic COATINGS which protect more metal on tonnage-basis than any other method of preventing corrosion.

Arrhenius bases INCLUDE IONIC compounds that contain the OH- ion, such as NaOH, KOH, and Ca(OH)2. This theory explains why acids have similar PROPERTIES: The characteristic properties of acids result from the presence of the H+ ion generated when an acid dissolves in WATER.

Therefore +2 (K) + X (Mn) + -8 (O) = 0 which means x = +6 so the OXIDATION NUMBER of Mn is +6 in K2MnO4.plz mark as BRAINLIEST

•ANSWER•Explanation:Newland ARRANGED the KNOWN elements in increasing order of atomic mass. He FOUND that the every eighth element had properties similar to that of first one. He compared it to the octaves found in music and thus it is called Newland’s LAW of octaves.HOPE IT WILL HELP YOU

are BOYS ALLOWED?EXPLANATION:

this is the CHEMISTRY but I am in CLASS 7TH

Ionic BONDS form when ATOMS transfer electrons between each other, forming ions that are electrically attracted to each other form a BOND between them. Sodium chloride (NaCl) is a TYPICAL ionic compound.

helloExplanation:a SOLID material which is TYPICALLY HARD, shiny, malleable, fusible, and ductile, with good ELECTRICAL and thermal conductivity (e.g. IRON, gold, silver, and aluminium, and alloys such as steel).hw r u sislet be as friends ✌️✌️✌️☺️☺️☺️

o The NEW chemical equation is N2 +H2 →2 NH3 REACTANTS Products NITROGEN 2 2 Hydrogen 2 6 Since NH3 is MULTIPLIED by a coefficient of 2 there are now 2 nitrogens and 6 hydrogens. The 6 hydrogens come from the 2 multiplied by the subscript of 3.

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33 is the best REGARDS DAVID David I am a of CHAP 2 and 3 for test

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The small size of the CARBON atom MAKES the compounds of Carbon exceptionally stable. Hence carbon as an element has the ability to form a VARIETY of stable compounds, which can exist FREELY in nature.

Sericulture, or silk farming, is the cultivation of silkworms to produce silk. Although there are several commercial species of silkworms, Bombyx mori is the most WIDELY USED and intensively studied silkworm. Silk was believed to have first been produced in CHINA as EARLY as the NEOLITHIC Period. Explanation:#KeepLearning...

Ethanol is bad for cold-starting, because it doesn't burn as quickly as gasoline. (It has a higher octane, if you're interested.) Pure ethanol would be useless as fuel in the winter months. There are no passenger cars designed to TAKE E100 (but some racing cars are) so it could DAMAGE your car engine.Fuel blending is typically performed to MODIFY the chemistry of the fuel, yet in-seam and in-mine variability of all COALS, and comparable variability of biomass fuels and petroleum cokes, makes the process of blend management more difficult.

x=3+i⇒x−3=i⇒(x−3) 2 =−1⇒x 2 −6x+10=0∴x 3 −3x 2 −8x+15=x(x 2 −6x+10)+3(x 2 −6x+10)−15=x(0)+3(0)−15=−15.Explanation:PLEASE mark me BRAINLIST

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Explanation:COLLIGATIVE properties are obeyed when the solute is non ELECTROLYTE and ALSO when the SOLUTION are DILUTE It's too short. Write at least 20 characters to explain it well.

tion:Protein secondary structure refers to the local conformation proteins' polypeptide backbone. ... Most COMMONLY, the secondary structure PREDICTION PROBLEM is FORMULATED as follows: given a protein sequence with amino acids, predict whether each amino acid is in the α-helix (H), β-strand (E), or coil region (C). pls marke brilliant and pls follow me

The School BOY" is a 1789 poem by William Blake and published as a PART of his poetry collection entitled Songs of Experience. These poems were later ADDED with Blake's Songs of INNOCENCE to create the entire collection entitled "Songs of Innocence and of Experience Shewing the Two Contrary States of the Human Soul". This collection included poems such as "The Tyger", "The Little Boy Lost", "Infant Joy" and "The Shepherd". These poems are illustrated with colorful artwork created by Blake first in 1789.[2] The first printing in 1789 CONSISTED of sixteen copies.[2] None of the copies of Songs of Innocence are exactly alike as some of them are incomplete or were colored in posthumously "in imitation of" other copies.[2]

This DIVISION of the Himalayas is demarcated by the river valleys. Punjab Himalayas: This PART of the Himalayas lies between the RIVERS Indus and Satluj. ... Kumaon Himalayas: This part of the Himalayas lies between Satluj and KALI rivers. NEPAL Himalayas: This part of the Himalayas lies between Kali and Teesta rivers.

a) SULPHUR dioxideb) Sulphur trioxidec) DINITROGEN trioxided) NITROUS oxidee) TIN(IV) chloridef) tin(II) chloride

n BINDING force In GRAPHITE is covalent BONDING as hybridization takes place when there is covalent bonding .by ROWDY baby ✌️

nch of SCIENCE concerned with the SUBSTANCES of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form NEW substances.

i know TAMIL but idk CORRECT way to ANS please translate I'll TRY ok?

The stress VALUE when FRACTURE occurs is DEFINED as the tensile strength for polymer materials. ... The tensile strength can be greater than, equal to, or less than the YIELD strength. The green curve is a class of polymers known as elastomers.

a bro FIRST oneExplanation:I READ in book NA2CO3 is the ANSWER

onia (NH 3 ) (B) Water (H 2 O); as F 2 is GETTING reduced to HF (c) Carbon MONOXIDE (CO) (d) Hydrogen (H 2 )

Molarity of stock solution (SOLN.) of HCl= (Molar mass)(%mass)(Density ofsolution)(10) 36.5(29.2)(1.25)(10) =10MAccording to dilution EQUATION M i V i =M F V f V i = M i M f V f = (10M)(0.4M)(200ML) =8mL.

In physics and chemistry, ionization energy or IONISATION energy is the minimum amount of energy required to REMOVE the most loosely bound ELECTRON of an isolated neutral gaseous atom or molecule. Explanation:HOPE it HELPS!!!

A decomposition reaction OCCURS when one reactant BREAKS down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition REACTIONS include the breakdown of hydrogen PEROXIDE to water and oxygen, and the breakdown of water to hydrogen and oxygen.Explanation:HOPE It Helps You.