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Periodic trends are specific PATTERNS that are present in the periodic table that ILLUSTRATE different aspects of a certain element, including its size and its ELECTRONIC properties. Major periodic trends include: electronegativity, ionization ENERGY, electron affinity, atomic radius, MELTING point, and metallic character. Periodic trends, arising from the arrangement of the periodic table, provide chemists with an invaluable tool to quickly predict an element's properties. These trends exist because of the similar atomic structure of the elements within their respective group families or periods, and because of the periodic nature of the elements.Explanation:HOPE IT WILL HELP YOU Mark as brainliest,follow=follow,thank,Inbox please

Explanation:Ammonium chloride decomposes readily when HEATED, but condenses in the cooler area at the TOP of the test tube. This is a reversible reaction, where the ammonium chloride decomposes into the gases ammonia (NH3) and hydrogen chloride (HCl).

निम्न में से 1 लोग और पर्यावरण के बीच उन्होंने क्रिया का सार्वत्रिक महत्वपूर्ण कारक है प्रौद्योगिक ।

CCl4 is a symmetrical molecule. Therefore, the dipole moments of all FOUR C-Cl bonds cancel each other. Hence, its resultant dipole moment is ZERO. As shown in the above figure, in CHCl3, the resultant of dipole moments of two C-Cl bonds is opposed by the resultant of dipole moments of one C-H BOND and one C-Cl bond. Since the resultant of one C-H bond and one C-Cl bond dipole moments is smaller than two C-Cl bonds, the opposition is to a small extent. As a RESULT, CHCl3 has a small dipole moment of 1.08 D.On the other hand, in case of CH2Cl2, the resultant of the dipole moments of two C-Cl bonds is strengthened by the resultant of the dipole moments of two C-H bonds. As a result, CH2Cl2 has a higher dipole moment of 1.60 D than CHCl3 i.e., CH2Cl2 has the highest dipole moment.Hence, the given COMPOUNDS can be arranged in the increasing order of their dipole moments as:CCl4 < CHCl3 < CH2Cl2

(1)EXPLANATION: Flourine has a very SMALL size and SHORT bond length . Therefore, due to SIGNIFICANT repulsion between lone pairs , the bond BECOMES weak.

A and CEXPLANATION:Because CH3-F have 486kj/mol.It is very STRONGEST.

your answerHope it HELPS

tion:The BOILING point of WATER is 100°C. So the physical state of water at a temperature of 250 degree Celsius which is MUCH above its boiling point will be gaseous state. The physical state of water at its boiling point temperature of 100 degree Celsius will be both liquid state as WELL as gaseous. hope it helps plzz mark as brainliest

8.85× 10^-3 is your required ANSWEREXPLANATION: NaCl + HCl is not a buffer but if HCl is LESS AMOUNT then it GIVES a buffer. NaCl + HClMole added 0.01 αMole after reaction (0.01-α) 0This is buffer of HCN+NaCNHence, pH = - log ka+ log( 0.01-a/a)8.5 = - log 4.1 × 10^-10 + log ( 0.01-a/a)a = 8.85 × 10^-3Hope it will help you ✌️

use ghramms law of DIFFUSION.and according to KTG. Explanation:diffusion= velocity which is inversely PROPORTIONAL to the MOLAR WEIGHT . then multiply the inverse ratio of molar weight with given ration and u will definitely get answers

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The methods used include physical PROCESSES such as filtration, sedimentation, and DISTILLATION; biological processes such as slow SAND filters or biologically active carbon; chemical processes such as flocculation and CHLORINATION; and the use of electromagnetic radiation such as ULTRAVIOLET lightExplanation:please mark me brain list please

Plasma is a BETTER conductor of electricity than copper. Plasma is USUALLY very hot, because it TAKES very high temperatures to break the bonds between electrons and the NUCLEI of the atoms. Sometimes plasmas can have very high PRESSURE, like in stars. Stars (including the Sun) are mostly made of plasma.

%NaCl—36%KCL—35%NH4CL—37%These are with 100G of WATER

Double DISPLACEMENT REACTIONS GENERALLY TAKE place in aqueous solutions in which the ions precipitate and there is an EXCHANGE of ions. For example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature.*Mark me as a brainlist*

it is because of the balancing that PLAYS a MAJOR ROLE in balancing the gases present in the ENVIRONMENT

When water and mud are mixed, some of these solid compounds MAY dissolve into the solution of water. ... Particles of mud become suspended in the water ADDED, and the water molecules interacting with the mud particles allow the mud to 'loosen up' and change shapeExplanation:A solution is a homogeneous mixture of two or more substances. Hydrogen Peroxide when mixed with water is a solution. ... A suspension is a heterogeneous mixture of larger VISIBLE particles that will settle out over time. Muddy water is a suspension.

Synthetic fibers melt on HEATING. If they CATCH FIRE, they melt and stick to the body of the PERSON wearing them. This is why it is advised not to wear clothes made of synthetic fiber while working in a KITCHEN or in a fire laboratory.Explanation:follow me

Plasticine is a MODELING clay. It is the name of a BRAND, just like the word Kleenex. We use it to IDENTIFY any similar product as they both were the first ones on the MARKET. It is William Harbutt an art TEACHER from England that invented it over one hundred years ago.

a)NS^2->O^2->F^-Explanation:Arrange the elements the sequence of increasing atomic no. and then find the ans by keeping in mind the concept that  in elements FALLING in the same period  the one with lower atomic no. is larger in size this is the explanation for first two QUESTIONS 3) the more the electrons an atom has to gain to achieve noble gas configuration the larger will be the charge and the longer will be the RADIUS since radius increases is the atom is NEGATIVELY CHARGED

i don't KNOW the ANSWER

The substance oxidised is HCLTHE substance reduced is MnO2Oxidising agent is MnO2 and REDUCING agent is HCL...Explanation:In the reaction MnO2 + 4HCL -> MnCl2 + Cl2 + 2H2O , Cl (chlorine) is the substance which is oxidized from the HCl, and it is the reducing agent for the MnO2 as well. As Cl is the oxidized substance in HCl, thus it is the OXIDIZING agent in the reactionhope this helps you...plz mark as brainlist answer ❣️

y now I will ANS. LATER.

bromide water TEST and esterification reaction is the answerplease MARK as BRAINLIEST ANSWER

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puntuation problemExplanation:HI!How are U?I am FINE.

tion:It is a physical CHANGE because when you heat the solution, you can GET back the lead (ii) nitrate. Lead(II)nitrate dissolves in water to give a colourless solution. Being an IONIC compound, the dissolution only involves DISSOCIATION into its constituent IONS

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Neutralization Reaction. Neutralization is a TYPE of chemical reaction in which a strong acid and strong base react with each other to form WATER and salt. ... Bee STINGS are acidic in nature, which is why a household remedy for a bee sting is BAKING soda or sodium bicarbonate, which is a basic substance.#gundi..✌✌

This may be USEFUL for youExplanation:Liquids generally have lower DENSITY as COMPARED to solids but ice FLOATS on water. ... These spaces are larger as compared to spaces in water molecules. Thus the VOLUME of ice is greater than water. Hence the density of ice is less than of water.

Explanation:acid rain affects the life of AQUATIC organisms threatening their life.acid rain also effects the metallic bodies of BRIDGES, vehicles and etc.reducing the smoke from vehicles and etc can REDUCE acidic rain.if it is helpful, then mark me as the BRAINLIEST.

I THINK this may be useful to youExplanation:ANSWER: The chemical reaction involved in the electrolysis of water is From the above reaction it is CLEAR that the AMOUNT of hydrogen gas and the oxygen gas FORMED are always in the ratio of 2:1. Therefore the volume of gas collected in the first test tube is double the volume of the gas collected in second test tube.