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tion:thermal EQUILIBRIUM. The condition under which two substances in physical CONTACT with each other exchange no HEAT energy. Two substances in thermal equilibrium are said to be at the same TEMPERATURE. See also thermodynamics.

it COULD be OPTION C

tion:as we can see from the attachment, 1 molecule of CH4 needs 2 molecules of oxygen, & molecular WEIGHT of oxygen is 32, HENCE molecular weight of 2 molecules of oxygen will be 64 g.64 g is the answer

tion:Neutralisation reaction - NA2CO3 + HCl---> NaCl + H2O this is a balanced equation. Same no. Of moles of Na2CO3 is required as of MOLE of HCl. Molarity of HCl = 0.01 = no. Of mol x 1000/vol. 0.01 = no. Of moles x 1000/20 No. Of moles = 0.01x20/1000 = 0.0002 Molarity of NaOH = 0.0002 x 1000/15 = 0.013M Hope you UNDERSTOOD well. Plz mark this answer as brainliest if helpful.

(c) Since ΔG=ΔH-TΔSfor REACTION to OCCUR ΔG is to be negativeso if ΔS is positive and ΔH is positive then TΔS>ΔH

D is the CORRECT ANSWER

b) CaO-->CaO+CO2 I HOPE that the ANSWER is correct

because during RESPIRATION we RELEASE out OXYGEN so it is EXOTHERMIC

Heya❤Acids taste sour, CONDUCT electricity when dissolved in water, and REACT with metals to produce HYDROGEN gas.

In a reaction in which both OXIDATION and reduction process TAKING place so the reaction is CALLED oxidation reduction reaction and REDOX reaction.Zn+CaO------>ZnO+Ca

HexanolExplanation:as there is C6H10OHIf you LIKE my ANS. MARK me as BRAINLIEST

(D)ACTINIUM SERIES This ANSWER is not CONFORM

1. The Reimer Tiemann reaction is an organic CHEMICAL reaction where phenol is converted into an ortho hydroxy benzaldehyde using chloroform, a base, and acid workup. ... This results in a nucleophilic attack on the dichlorocarbene, forming an intermediate dichloromethyl SUBSTITUTED phenol.2. It is named after the scientist Hermann Kolbe. Kolbe's reaction is a carboxylation chemical reaction. This reaction is preceded by allowing sodium phenoxide to absorb carbon dioxide and then heating this product at a temperature of 125°C under the pressure of several atmospheres of carbon dioxide.3. The Williamson ether synthesis is an organic reaction, forming an ether from an organohalide and a deprotonated ALCOHOL (alkoxide). This reaction was DEVELOPED by Alexander Williamson in 1850. Typically it involves the reaction of an alkoxide ion with a primary alkyl halide via an SN2 reaction.Hope this answer will help you

A is the CORRECT ANSWER

ments such as hydrogen and helium follow the order of INCREASING atomic weight in the mendeleev periodic table.Explanation:in case of the mendeleev periodic table periodic table was created on the basis of the atomic WEEK of the ELEMENTS and not on the basis of the atomic number. As a result of this the lower elements such as hydrogen and helium followed the order of increasing atomic weight. However there were CERTAIN EXCEPTION as in the case of organ and potassium where there was not increasing order of atomic weight. This was the drawback of the mendeleev periodic table

tion:Liquefaction of gases is the PROCESS by which substances in their gaseous STATE are CONVERTED to the LIQUID state. When pressure on a gas is increased, its molecules closer together, and its temperature is REDUCED, which removes enough energy to make it change from the gaseous to the liquid state.

hey MATE...which R you talking about?your question is INCOMPLETE..KINDLY CHECK it again.

Liquefaction Of Gases. ... At this critical temperature and pressure the VOLUME of 1 mole of the gas is KNOWN as critical volume. Further rise in the pressure compacts the LIQUID. Carbon dioxide and the curve depict the compressibility of liquid. The erect line in the graph SHOWS the ISOTHERM of liquid.

Explanation:A POSITIVE DEVIATION means that there is a higher than expected vapor pressure above the solution. A negative deviation, conversely, means that we find a lower than expected vapor pressure for the solution. ... Solutions that obey RAOULT's law are called ideal solutions because they behave EXACTLY as we would predict.Hope it helps you...

Element           Atomic NUMBER       Atomic Mass        ValencyHydrogen                  1                       1 .0079                 -1, +1Helium                       2                       4.0026                   0Lithium                      3                       6.941                     +1Beryllium                   4                        9.0122                  +2Boron                        5                       10.811                    -3, +3Carbon                       6                        12.0107                 +2, +4Nitrogen                    7                        14.0067                -3, -2, -1,+,1+2,+3,+4,+5Oxygen                      8                        15.9994                -2Fluorine                     9                          18.9984                -1, +1Neon                         10                         20.1797                  0Sodium                      11                         22.9897               +1Magnesium               12                        24.305                  +2Aluminum                13                         26.9815                +3Silicon                        14                        28.0855                -4, (+2), +4Phosphorus               15                        30.9738                -3, +1, +3, +5Sulfur                         16                        32.065                  -2, +2, +4, +6Chlorine                     17                         35.453                  -1,+1, +2,+3,+4,+5,+7Argon                          18                        39.0983                 0Potassium                   19                        39.948                   +1Calcium                       20                       40.078                   +2Scandium                    21                       44.9559                 +3Titanium                       22                    47.867                   +2,+3,+4Vanadium                     23                   50.9415           +2,+3,+4,+5Chromium                     24                   51.9961              +2, +3, +6Manganese                   25                    54.938   +2,+3,+4,+6,+7     IRON                                 26                   55.845           +2,+3,+4,+6Nickel                              27                 58.6934                +2, +3,+4Cobalt                             28               58.9332              +1,+2,+3,+4Copper                           29                63.546                  +1, +2,+3Zinc                                  30                        65.39                    +2

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critical TEMPERATURE critical pressure critical volume Explanation:HOPE its HELP u

tion:I am not getting what you want to ask but if you are ASKING for reaction of metal so..Ca(OH)2(aq)+CO2(G)→CaCO3(s)+H2O(l)

tion:Common examples of state VARIABLES are the pressure P, VOLUME V, and temperature T. In the ideal gas law, the state of N MOLES of gas is precisely DETERMINED by these three state variables. ... The entropy S is also a state variable.

a )1Explanation:at all TEMPERATURE and PRESSURE Z =1

id is mixed with water, RESULTS in decrease of H+ ions.This ALSO results in the DILUTION of acid. and MAKE acid weak.HOPE IT HELPS...

isopropyl alcohol is CH3-CH(OH)-CH3 ...a secondary alcohol.. t-butyl alcohol is (CH3)3C-OH ....a tertiary alcohol ..... the best way to distinguish between them is;' Lucas test'...this test is based upon the difference in reactivity of primary,secondary and tertiary alcohols with HCl... in this test the alcohol is MIXED with Lucas reagent (an equimolar MIXTURE of conc.HCl and anhydrous ZnCl2) at room temperature when turbidity due to the FORMATION of insoluble ALKYL chloride is observed.... if the turbidity appears immediately ,the alcohol is tertiary... if the turbidity appears in about 5 minutes alcohol is secondary.. a primary alochol HOWEVER does not react with lucas reagent at room temperature and hence no turbidity is formed... so (CH3)3-C-OH + HCl + ZnCl2(anhydrous) -----> (CH3)C-Cl + H2O (turbidity appears immediately) CH3-CH(OH)-CH3 + HCl + ZnCl2(anhydrous) ----.>CH3-CH(Cl)-CH3 + H2O (turbidity appears in 5 minutesRead more on Brainly.in - brainly.in/question/8281316#readmoreExplanation:

K.E_A=3nARTA/2K.E_B=3nBRTB/2given mass=mnA=m/2nB=m/44K.E_A/K.E_B=nATA/nBTBm/2x300/m/44x60011:1

due to HYDROGEN BONDING in H2OExplanation:Hydrogen bonding take PLACE in H2O not in the other COMPOUNDS that is why it is in liquid state

due to intramolecular hydrogen bonding in o- CHLORO phenol BOILING point LOWER but P- chlorophenol contains INTERMOLECULAR hydrogen bonding high

ACID - BASE ANALYSIS EXPLANATION:★ ACETIC ACID :- WEAK ACID ★ AMMONIUM HYDROXIDE :- STRONG BASE » OPTION B TQ ❤ ❤

6.02 X 10**22Explanation:

X2SO4X(OH)2Hope HELPS MAKE ME AS BRAINLIEST

Aniline is prepared commercially by the catalytic hydrogenation of nitrobenzene or by the ACTION of ammonia on chlorobenzene. The reduction of nitrobenzene can also be CARRIED out with iron borings in aqueous acid. A primary AROMATIC amine, aniline is a weak base and FORMS SALTS with mineral acid.

NO3– There are 3 possible RESONANCE structures that satisfy the octet RULE. In each resonance STRUCTURE, the formal charge on N = +1; the formal charge on the N = O OXYGEN = 0; and the formal charge on each of the N – O oxygens = –1. The actual structure is an equal mixture of the 3 resonance structures

hence the f block ELEMENTS are highly radioactive/ REACTIVE so they are KEPT away from the ELEMENT chart

Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a salt, water, and carbon DIOXIDE gas. EXTREMELY active metals such as Potassium (K), CALCIUM (Ca), Sodium (NA), ETC tend to explode when combined with acids. Weak Acids like Carbonic Acid doesn't act with any metal at all.Explanation: