Chemistry Questions and Answers

  • Where could I buy potassium chloride?
  • Where do tears come from?
  • Where does all the carbon monoxide (CO) go?
  • Where does phosphor come from?
  • Where does the electron come from to make a scandium +1 ion?
  • Where in india is deionized water available? I need it for a medicine?
  • Where is a place where metal is melted?
  • Where is the ice in a frozen lake? Where is the Water? How does ice protect the living organisms in the water?
  • Where should i get csir question papers?
  • Where The Color Goes?
  • Where the Oxygen! goes in Photosynthesis?
  • Where to buy ctv mca13?
  • Where to buy Potassium Nitrate (saltpeter)?
  • Where to buy science chemicals?
  • Where to buy thermite (or the makings thereof) in Alberta, Canada?
  • Where to find natural elements?
  • Where to purchase Chinese Gourmet Potassium Perchlorate?
  • Where was potassium discovered?
  • Where would you expect to find this segment at the center or surface of globular protein? Why?
  • Whether Acrylonitrile butadiene styrene (ABS) plastic material is isotropic or anisotropic in nature ?
  • Which is the spectator ion and ion expected to hydrolyze in KAl(SO4)2?
  • Which acid is stronger? Plz?
  • Which agency has the final say as to whether a substance is hazardous or not.?
  • Which are the three different pH levels of 0.1M HCl for dissolution?
  • Which bond is stronger? Ionic or metallic?
  • Which characteristics of a solid, agas , a liquid are exhibited by a bowl of pudding?
  • Which compound in each pair would you expect to have the higher boiling point?
  • Which compound is predominently covalent?
  • Which covalent bond is the most polar?
  • Which dissolved faster, the salt that was stirred, or the salt that wasn't stirred?
  • Which do you prefer a simple distillation or a fractional distillation process and compare their efficiency?
  • Which element has the largest number of electrons in its valence shell? S Fr K As F?
  • Which element in the periodic table has the highest no. of isotopes ?
  • Which element is least likely to obey the octet rule in forming chemical bonds? Why?
  • Which element is shiny brown and becomes black by heating in air?
  • Which element name can be made out of these letters?
  • Which expands more when heated,a solid,a liquid, or a gas?why?
  • Which experiment can u do to tell if a yellow crystalline material is ionic or covalent?
  • Which factor: T or p, will affect the number of molecular collisions, most significantly?
  • Which freeze dryer?
  • Which gases would make good balloons?
  • Which gives of more energy, combing with H2. (hydrogen) o2 (oxygen) or F2(Fluorine)?
  • Which halide is the better nucleophile? Br- or Cl-?
  • Which has more total atoms 1 mole of Cl2 or 1 mole of NH3?
  • Which if any will have the highest boiling temp? .20m NaCl, .10m AlCl3, .40m KBr, .20m CaCl2?
  • Which industries treat hard water before using it in their industrial processes?
  • Which ion does not give pecipitate with NaOH solution?
  • Which ion is present in the highest concentration in a 2 mol/dm³ aqueous solution of sodium sulphate?
  • Which is biggest one among cation and anion? why?
  • Which is denser, water or benzene?
  • Which is heavier, water or gasoline?
  • Which is hotter, -500 degrees Celcius or -812 degrees Farenheit?
  • Which is larger in each of the following?
  • Which is least reactive? Cl2 or O2?
  • Which is more acidic, acetic acid or butanoic acid? Why?
  • Which is more basic? blood,bleach?
  • Which is more efficient in separating components of a liquid mixture, simple or factional distillation?
  • Which is more efficient single or multiple liquid-liquid extraction?
  • Which is more efficient, simple or multiple extraction? why?
  • Which is more toxic an alcohol or a phenol ?
  • Which is more toxic an alcohol or a phenol ? and which is more reactive ?
  • Which is not used to prepare zinc chloride by reaction with hydrochloric acid?
  • Which is stronger? Ethanoic acid or 'Tris' acid?
  • Which is the best solvent for silicondioxide? SiO2?
  • Which is the costliest element in the world?
  • Which is the dominant reaction? how is it determined?
  • Which is the limiting and excess reagent in this reaction?
  • Which is the most elctro posetive mole of periodical table?
  • Which is the most rarerest elemental metal on earth?
  • Which is the most rearest elemental metal on earth?
  • Which is your favourite element and compound and why?
  • Which neutral atom is isoelectronic?
  • Which noble gas has a density of 1.79g/L at STP?
  • Which of the following alcohols is least soluble in water?
  • Which of the following always has different types of atoms?
  • Which of the following aqueous (water as a solvent) solutions would have the lowest boiling point if they are?
  • Which of the following aqueous(water as a solvent) solutions would have the lowest boiling point if they are..
  • Which of the following aqueous(water as a solvent) solutions would have the lowest boiling point if they are..
  • Which of the following are ions, which are molecules, and which are both?
  • Which of the following buffer system(s) is(are) important in human blood?
  • Which of the following buffers will have the lowest pH?
  • Which of the following cannot form alkenes?
  • Which of the following compounds contains an ionic bond?
  • Which of the following compounds could have the molecular formula C7H16?
  • Which of the following compounds is a weak acid?
  • Which of the following configurations depicts an excited oxygen atom?
  • Which of the following covalent molecules will be polar? CO2,CCL4,CHCL3,N2,O2?
  • Which of the following did Hooke use in his first microscope?
  • Which of the following does not affect the boiling point of a liquid?
  • Which of the following does not contain hydrogen? (a)Water(b)common salt,or (c)sugar?
  • Which of the following equation will be affected by change in volume?
  • Which of the following forms of radiation is high energy electromagnetic radiation?
  • Which of the following has only nonpolar covalent bonds Hi, Co, CCI4, NaCl, N2?
  • Which of the following is a base? Which is a Solid?(a) CaSO4 (b) NH4Cl (c) Mg(OH)2 (d) H2O (e) H2O (f) H3PO4?
  • Which of the following is a buffer system?
  • Which of the following is a buffer?
  • Which of the following is a measure of disorder?
  • Which of the following is a strong acid?
  • Which of the following is a strong base?
  • Which of the following is a weak electrolyte?
  • Which of the following is an acid salt?
  • Which of the following is an alkene?
  • Which of the following is an example of trihydric alcohol?
  • Which of the following is an hydrated compound??
  • Which of the following is associated with colloidal particles?
  • Which of the following is characteristic of a buffer?
  • Which of the following is most closely related to the dinosaur? the bird the fish or bat? THANKS 4 THE HELP!?
  • Which of the following is not a physical method of separation?
  • Which of the following is not an example of a redox reaction? bleaching, precipitation, respiration, rusting?
  • Which of the following is not an example of an intermolecular attraction?
  • Which of the following is not homogeneous?
  • Which of the following is NOT typical of most organic compounds?
  • Which of the following is the [OH-] in pure water at room at room temperature?
  • Which of the following is the conjugate acid of water?
  • Which of the following is true of a buffer prepared w/ equal concentrations of an acid and its conjugate base?
  • Which of the following is true of a reaction which has reached equilibrium?
  • Which of the following is true of a solution of ammonium acetate, NH4C2H3O2?
  • Which of the following is true of all multi-step reactions?
  • Which of the following is true of all multi-step reactions?
  • Which of the following is true of all pH indicators?
  • Which of the following is true of nonane, C9H20, which has a density of 0.79 g/mL, melts at -51°C, and boils a
  • Which of the following is true of salts?
  • Which of the following is true regarding the solubility of liquids and solids?
  • Which of the following is(are) examples of equilibrium situations?
  • Which of the following materials will react with an acid to produce a gas?
  • Which of the following metals exhibits multiple oxidation states?
  • Which of the following molecules can engage in hydrogen bonding?
  • Which of the following molecules can form hydrogen bonds?
  • Which of the following molecules has the longest carbon-oxygen bond length:?
  • Which of the following must we know when we carry out a titration?
  • Which of the following must we know when we carry out a titration?
  • Which of the following pairs of elements are likely to form an ionic compund?
  • Which of the following phase changes does not involve a liquid?
  • Which of the following reactions will occur spontaneously as written?
  • Which of the following represents .0000307 in scientific notation?
  • Which of the following salts when added to Pure H2O will cause a significant change in the PH of the solution?
  • Which of the following solid is characterized by the least order: amorphous, ionic, molecular, net. covalent?
  • Which of the following solutions will have the highest electrical conductivity?
  • Which of the following statements is true about a reversible reaction?
  • Which of the following statements is true about a reversible reaction?
  • Which of the following structures contain a tertiary carbon:?
  • Which of the following type of materials will react with sodium bicarbonate, NaHCO3 to produce a gas?
  • Which of the following type of solid is most likely to have a low, but well defined, melting point?
  • Which of the following type of solid is most likely to have a low, but well-defined melting point?
  • Which of the following will change the numerical value of the equilibrium constant of a particular reaction?
  • Which of the following will have the lowest freezing point?
  • Which of the following would increase the pH of water when it is dissolved in water: ether, amine, or ketone?
  • Which of the folowing pieces of data can we obtain from a heating curve?
  • Which of these 2 is insoluble in water: Ca(NO3)2 or PbSO4. I believe Anglesite is correct. pls confirm.?
  • Which of these compounds are soluble or insoluble in methylene chloride? ether, white oil and benzene?
  • Which of these equations represents the standard enthalpy of formation of carbon dioxide?
  • Which one more accurate?
  • Which one is a physical or chemical change?
  • Which one is blue? luminous or non-luminous?
  • Which one is the answer?
  • Which one of the following is NOT true?
  • Which one requires a net energy input in order to complete?
  • Which organic molecules have the highest calories?
  • Which process requires energy- passive or active transport?
  • Which reactant remains unconsumed at the end of the combustion? how many grams remain?
  • Which solvent is most suitable for recrystallizing acetanilide? Is it water, methanol or hexane? Why?
  • Which substance is oxidized in this reaction?
  • Which sugar gives a positive iodine test but is negative with Benedict's and fermantation test?
  • Which way should the equilibrium shift in the following equation when NA2SO^4 is added?
  • Which way should the following equilibrium shift when NaHSO4 is added and why?
  • Which will occupy more volume, 50 grams of water or 50 grams of ethanol and why?
  • Which, if any of the following is likely to form a polymer? C2H6, C3H6, C4H10, C6H16?
  • Whither the Oxygen?
  • Whn a solute is plced in a solvent:The vp is lowerd? b)the frezing pnt is incresed c)osmotic p incrsdD) bp up?
  • Who conceived the idea of indivisible units called atoms?
  • Who develeoped the microscope?
  • Who discoverd the electron?
  • Who discovered Quantum number?
  • Who discovered that circumcision should be done?
  • Who invented silly putty?
  • Who is Felix Maramba?
  • Who is generally regarded as the discoverer or the proton, electron, and neutron?
  • Who is good in chemistry?
  • Who is saint ignacius?answer me!pls!?
  • Who is the real inventor of the microscope?
  • Who Knows Simple litmus experiment needs wud nessesary things to do it?
  • Who the HELL is Fritz Haber?
  • Who were all the major scientists that contributed to the development of the theory of the atom?
  • Who will explain ?
  • Wht is the hybridisation of [Ti(Cl)6]2- and [Cr(h2o)6]3+ ?
  • Wht r all physical and chemical properties of elements & how do they differ down the group & across the period
  • Whts in it soap tht causes its lather?
  • Why ammonia(NH3) has a higher boiling point than phasphine(PH3)?
  • Why are all Sodium, Potassium and Ammonium salts soluble?
  • Why are copper and chromium having 4s1 only?
  • Why are enot counted in the atomic mass?
  • Why are keys made of Brass?
  • Why are metallic substances shiny?
  • Why are most of the foods we eat acidic and not basic?
  • Why are potential carcinogens found in liquid soap?
  • Why are some bonds not pure covalent or ionic?
  • Why are the terms soluble and insoluble very broad and not very accurate?
  • Why are there no compounds with the formula C5H14?
  • Why are there three diff values to probability distribution for the avg speed of particles in a gas?
  • Why are three hydrogren atoms acidic in Citric Acid?


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