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es that “A CHEMICAL compound is always found to be made up of the same ELEMENTS combined together in the same FIXED proportion by mass”. For example, a sample of pure WATER from various SOURCES or any country is always made up of only hydrogen and oxygen.

gas in liquid SOLUTION is liquid in liquid ( or solvent + solute) Suspension is a colloidal I.e. if particles of solute are more than 1 ųm but less than 100ųm then it FORMS suspension

all EXOTHERMIC REACTION.

Molecular DIFFUSION, often simply CALLED diffusion, is the thermal motion of all (liquid or gas) PARTICLES at temperatures above absolute zero. The rate of this MOVEMENT is a function of temperature, viscosity of the fluid and the size (mass) of the particles.

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Explanation:molar MASS of carbon = 12gramsmolar mass of oxygen = 16 gramsbut there are two ATOMS of oxygen ,so 2*16=32molar mass of CO2= 12 + 32 = 44g this is how molar mass of CO2 IS 44GRAMS

96500Explanation: Q = I . t I = 1 C/ 1 SEC I = 1 F I= 96500 ( SINCE 1 F = 96500C )

washing soda prepare from reducing SODIUM hyd.carbonate or baking soda Explanation:the CHEMICAL formula of washing soda is Na2Co3.10H2Oit is a type sodium salt .the. sodium which is present in detergent which helps to remove the HARDNESS of WATER .plz follow me and THANKS for the answer

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by CHANGING colors EXPLANATION:when phone indicator put in any SOLUTION it changes its colour MAINLY red, and blue

: 2.04Explanation: N = Molarity × n- factor M = no. of moles / VOL.{ in LIT.} N = 10× 2× 1000/ 98 × 100 N = 2.04

0.01575Explanation:ANSWER2H 2 +2NO→2H 2 O+N 2 − dtdR =K[H 2 ][NO] 2 K=42M −2 S −1 [H 2 ]=0.015M [NO]=0.025M− dtdR =42×0.015×0.025=0.01575 MS −1

1/4molesExplanation:28g -------- 1 MOLES 7G. -------- X moles X=7/28 moles. N2 ___14+14 g

tion:Explanation:The reaction between two water molecules to produce hydronium ION and hydroxide ion is known as autoprotolysis of water. This is self IONIZATION of water.Nov 22, 2019 Auto-protolysis is also CALLED the self-ionization. Auto-protolysis of water is a reaction in which self-ionization of water molecules takes place to produce hydronium ion (H3O+) and hydroxide ion (-OH). Significance: Ability of Water to act as an acid as WELL as base.

physical CHANGES are temporary and chemical are PERMANENT EXPLANATION:physical changes are like water CONVERT into ice but we can reconvert it but in chemical CHANGE like milk convert into yogurt which can not be reverse

NH4NO2 is the FORMULA of AMMONIUM nitride.....HOPE it will be HELP you

4-methoxy BENZOIC ACID. i HOPE it is CORRECT.

The answer is 35 minutesExplanation:Notice the initial and final concentrations. Initial CONCENTRATION itself GOT reduced to half in 35 minutes which is nothing but the final concentration. If u R not sure then use,Half life = 0.693 / rate CONSTANT (k) where rate constant (k) is EQUAL to,k = 2.303 / time × log (initial concentration) (final concentration)

4-Methoxybenzoic ACID

a) CnH2n--OH or R--OHB) RC(=O)R'C)

tion:As the ATOMIC radius decreases, it becomes harder to remove an electron that is closer to a more positively charged nucleus. ... They experience a weaker ATTRACTION to the positive charge of the nucleus. Ionization ENERGY INCREASES from left to right in a period and decreases from top to bottom in a group.hope this explanation is HELPFUL for you please mark as brainliest answer....

The simple definition of water hardness is the amount of dissolved CALCIUM and magnesium in the water. Hard water is high in dissolved minerals, largely calcium and magnesium. ... When hard water is heated, such as in a home water heater, SOLID deposits of calcium CARBONATE can form.I Hope It HelpsPlz Mark Me As BRAINLIEST

Because they all have ALMOST SIMILAR PHYSICAL and CHEMICAL PROPERTIES

tion:Because the effective NUCLEAR CHARGE of the atoms increase thus ELECTRONS are closely PULLED towards its nucleus thus atoms shrink in size Pls mark as BRAINLIEST..

Explanation:The soil PROFILE is where the SECRETS of the soil and landscape around it are hidden. The soil profile is DEFINED as a vertical SECTION of the soil that is EXPOSED by a soil pit. A soil pit is a hole that is dug from the surface of the soil to the underlying bedrock.