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Explanation:Answer: Formula of sodium sulfate is NA2SO4. It is an IONIC COMPOUND and consists of 2 sodium ions and 1 sulfate ION.

Syllabus Chemistry (PSEB 12th) Unit-I: Solid, State. Unit II: Solutions. Unit III: Electrochemistry. Unit IV: Chemical Kinetics. Unit V: Surface Chemistry. Unit VI: GENERAL Principles and Processes of Isolation of Elements. Unit VII: p-Block ELEMENT. Unit-VIII: d and F Block Elements

hope it helpsExplanation:In the presence of UV LIGHT, cyclopropane will undergo substitution reactions with CHLORINE or bromine just LIKE a non-cyclic ALKANE. ... In the absence of UV light, cyclopropane can undergo addition reactions in which the ring is BROKEN. For example, with bromine, cyclopropane gives 1,3-dibromopropane.

Here is a answer in detail.Explanation:Refrigeration for Food Preservation Fruits  and  vegetables  are  perishable  commodities.  If  not  stored  at  recommended  temperatures,  they  rot in  a  short  time  by  chemical  reactions,  bacterial  attack,  or  water loss.  Improperly  stored  fruits  and  vegetables lose  nutrition  value  over  a  PERIOD  of  time.  Changed  physical  appearance  or  taste also affects their consumer appeal. Refrigeration helps in preserving fruits and vegetables by  storing at low temperatures to slow down decay and natural metabolic processes.  Meat, fish products and precooked foods also have limited life because of enzyme activities, bacteria  attack and ageing. Low temperature is very effective in limiting these reactions. Similarly, ice cream,  other  dairy  products,  bakery  products  and  beverages  need  to  be  stored  at  low  temperatures  for  long term use.  Q. How does refrigeration help to conserve food products? Food  products  get  spoiled  because  of  internal  chemical  reactions  which  cause  ripening  and  fermentation;  and  the  growth  of mould  and  bacteria.  These  processes  can  be  stopped  or  slowed  down by storing the food at low temperatures. Thus, refrigeration techniques help to preserve food  products for longer periods.  Q. Can all fruits and vegetables be stored at the same temperature? No. The OPTIMUM storage temperature varies for different kinds of food products. Fruits like grapes,  kiwifruit,  APPLE,  cherry,  peach,  strawberry,  raspberry  and  vegetables  like  onion,  cabbage,  BEET,  carrots, etc. are ideally stored at temperatures of around 0˚C. Oranges and potatoes are stored at 4  to 5oC. Watermelon, pumpkin, grapefruit, and cucumber require 10˚C storage temperature. Mango,  lemon, tomato, and banana are stored at 14 to 15˚C temperature. Q. What is the normal relative humidity required for the food storage? Normally most  food products require 90  to 95 % relative humidity  (RH) inside  the cold storages.  Onions  require  very low  RH  of  65  to  70%.  Leafy  vegetables  are  stored  at more  than  95%  RH  to  avoid excessive moisture loss.  Q. Why do frozen foods last longer than refrigerated foods? Fruits and vegetables are stored at temperatures slightly above freezing point to prolong their life  by a  few DAYS or weeks. Here, product decay process is slowed down but not stopped completely.  Whereas, meat, fish, precooked foods as well as fruits and vegetables may be frozen and stored at  very low temperatures until they are defrosted and cooked by the consumer. In this case, the decay  process is stopped completely and the food can be preserved.

Fully fluorinated POLYMER is the polymer containing fluorine: Teflon.Explanation: hope it will HELP you mate....

tion:HEY thereEthanol C2H5OH Propan-1-ol C3HH7OH SINCE, they both are alcoholsSo when they are mixed together no reaction takes placeHope it HELPS youPlease mark it as branliest

Elastomers are natural or SYNTHETIC MATERIALS which are used for improving the ELASTIC PROPERTIES of the clothing/yarn and other materials. The Spandex and rubber are the examples. The fibre is a wider term which can be used for natural.

here EXPLANATION:Nitrogen dioxide is the chemical COMPOUND with the FORMULA NO2. It is one of several nitrogen oxides. NO2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year which is used PRIMARILY in the production of fertilizers. At higher temperatures it is a reddish-brown.[8] Nitrogen dioxide is a paramagnetic, bent molecule with C2v POINT group symmetry.

what is UR FULL QUESTION..........

Hey there,ELEMENT : CalciumMass no = 40Atomic no = 20We KNOW that,Mass no = Atomic no + No of NeutronNo of Neutron = Mass no - Atomic noNo of Neutron = 40 - 20No of Neutron = 20 neutronsHope it HELPS youplease MARK it as branliest

1/2Explanation:ke=2/3mktke PROPORTIONAL to masske1/ke2=2/4=1/2

These factors include a change in temperature, pressure, reactant CONCENTRATION, and product concentration. When any of these factors are changed, the equilibrium point of the REACTION will move and the concentration of products and REACTANTS in the SYSTEM at the NEW equilibrium point will be different.Explanation:

tion:Hey thereSince on removing CH3OH from the equation,Since on removing CH3OH from the equation,The concentration of reactants at RHS will decrease and THUS concentration of reactants at LHS will INCREASE hence reaction will more towards forward reactionHope it helps youPlease mark it as BRANLIEST

organic acid are acid and they will HELP full like in VEGETABLE acid and mineral acid are like HNO3 ETC and please please THANK me and follow me

E THE FOLLOWING THINGS THAT WILL BE REQUIRED TO STUDY DIFFERENT (MOST COMMON)CHEMICAL REACTIONS::::PLEASE REFER TO THE ABOVE ATTACHMENTTHANKING YOU..THE FOLLOWING REACTIONS CAN BE STUDIED:COMBINATION(EXOTHERMIC)DECOMPOSITION(ENDOTHERMIC)DISPLACEMENTDOUBLE - DISPLACEMENTOXIDATION AND REDUCTION(REDOX)

which ONE should I ANSWER

VE REACTION IS A COMBINATION REACTIONIT CAN BE ALSO STATED AS AN EXOTHERMIC REACTION AS : evolution of heat is involvedREACTION::::::CaO + H2O -------------> CA(OH)2 + heat (exothermic & combination)COMBINATION BECAUSE: two reactants combined TOGETHER to form a single productEXOTHERMIC BECAUSE: already mentioned above :)THANKING YOU....

Collision frequency describes the RATE of COLLISIONS between TWO atomic or molecular species in a given VOLUME, per unit time. In an ideal gas, assuming that the species behave like HARD spheres, the collision frequency between A and B is: SI unit of Z is number of collision per time .

फूल हूँ गुलाब का,चमेली का मत समझना ,आशिक़ हूँ आपका ,अपनी सहेली का मत समझना .

[In the formula, R represents an alkyl group having 1 to 3 carbon atoms, an alkoxy ... include 1,2-DIHYDROXYBENZENE, 1,3-dihydroxybenzene, 1,4- dihydroxybenzene, 1,2 ... a bisphenol TYPE compound, particularly, bis (2,4- dihydroxyphenyl) methane ... The method for converting all or a part of the PHENOLIC hydroxyl group.

a is not a ALLOTROPE of CARBON

no it is notExplanation:but SALT WATER is CONDUCTOR

elements in the group 2 have same chemical and physical properties they have 2 electron in their VALENCE shellplease MARK it as a brainliest answer

hiExplanation: L don't KNOW the ANSWER SRY BRO

tion:In ethene due to presence of double bond , electron DENSITY is very high. So, it is more reactive than ethane . ALSO due to saturation ethane is less reactive than ethene. HOPE it is HELPFUL.

342.3g/molDensity:1.59g/cm

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Be ( OH )₂ , is AMPHOTERIC while Mg ( OH )₂, is basic it is because of the ionization enthalpy of Mg-OH bond can break more EASILY in Mg ( OH )₂ in comparison of Be ( OH )₂ . Be ( OH )₂ is insoluble but Ba ( OH )₂ is fairly solution in water because with the increase in size from Be to Ba , the lattice enthalpy decrease. Also HYDRATION enthalpy remain almost constant.

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λ = 9000 À .Explanation:Given : Mass of electron = 9.1 × 10⁻²⁸ gIn TERM of kg : Mass of electron = 9.1 × 10⁻³¹ kgK.E. of electron = 3.0 × 10⁻²⁵ JWe know : λ = h / √ ( 2 m × K.E. ) where h = 6.6 × 10⁻³⁴  J sλ =  6.6 × 10⁻³⁴ / √ ( 2 × 9.1 × 10⁻³¹ × 3.0 × 10⁻²⁵ )  mλ =  6.6 × 10⁻³⁴ / √ ( 54.6 × 10⁻⁵⁶ ) mλ =  6.6 × 10⁻³⁴ /  7.39 × 10⁻²⁸ mλ = 9 × 10⁻⁷ mNow WAVE length in term of À : λ = 9 × 10⁻⁷ × 10¹⁰ Àλ = 9000 À .Therefore wavelength is 9000 À .Photoelectric effect : When a beam of LIGHT having frequency more than threshold frequency is made to fall on metal surface , electron are ejected. These electron is CALLED photo electron and this phenomenon is called photoelectric effect.

2000 KExplanation:Given reaction as : 2 A + B ⇒  C = > Δ H = 400 kJ mol⁻¹ and Δ S = 0.2 kJ K⁻¹ mol⁻¹ LET is first calculate TEMPERATURE at which the reaction will be in equilibrium.i.e. Δ G = 0We know : Δ G = Δ H - T Δ S= > Δ H - T Δ S = 0= > T = Δ H / Δ SPutting given VALUES here we get : = > T = 400 / 0.2 K= > T = 2000 KTherefore , the required temperature is 2000 K .