Chemistry Questions and Answers

  • Why does carbon monoxide have a triple bond?
  • Why does Chemistry suck?
  • Why does chewing aluminium foils or soft metal wrappers hurt so much?
  • Why does chlorine have more electron affinity than flourine although it is below flourine in periodic table?
  • Why does Chromatographs of sequenced DNA usually has broad peaks in the begining?
  • Why does coke foam up when it hits ice cream?
  • Why does cooking oil get black after it is deep fried repeatedly?
  • Why does cooking oil gets black after it is deep fried?
  • Why does Copper Sulfate turn white once it has lost all its 5 waters, and blue when it is hydrated?
  • Why does Copper Sulfate turn white once it has lost all its 5 waters, and blue when it is hydrated?
  • Why does diet coke not like being frozen, its now all over my freezer?
  • Why does distilled water not conduct electricity whereas rain water does?
  • Why does ethanol, in its concentration range (70%), is considered a bactericidal?
  • Why does ferrocene's aromatic hydrogens exhibit and upfield shift in its H-NMR?
  • Why does fire burns us?
  • Why does Food dye stain the Human Skin?
  • Why does half cut apple becomes brown when crushed vitmin c is spread over it help me please.?
  • Why does HCl gas not change the colour of dry litmus paper?
  • Why does heat cause a solute to disssolve the fastest?
  • Why does heating up aspartame over 86 degrees cause it to become formaldehyde?
  • Why does hydrogen peroxida act as an antiseptic?
  • Why does Ionization energy decrease as you go down the column of the periodic table?
  • Why does it take longer to Heat?
  • Why does it take more salt in water solution to float a soft boiled egg then a hardboiled egg?
  • Why does Kekule's structure of benzene not truly represent the actual structure.?
  • Why does LPG gas stove produce blue flame not yellow flame?
  • Why does metal get hot very quickly when heated?
  • Why does octanoic acid have a higher boiling point than octan-1-ol?
  • Why does OH group in propanoic acid appear as singlet but OH in propanol is triplet?
  • Why does oil & water not mix together? what chemical properties keep them from mixing?
  • Why does oxygen support combustion but doesn't burn?
  • Why does 'pi' bond shortens the bond length??
  • Why does pure water have a neutral pH at 25 degrees Celsius?
  • Why does putting salt on your skin with ice burn your skin?
  • Why does red cabbage extract change it's colour when cooled?
  • Why does red cabbage extract change it's colour when cooled?
  • Why does rinsing your hair with water and lemon juice help it.?
  • Why does salt keep sugar from clumping?
  • Why does silver stain?
  • Why does soap dissolve grease and plain water will not?
  • Why does soda pop fizz when opened after being shook-up? I know it's because of the CO2 but why actually?
  • Why does soda with less sugar have a greater reaction with Mentos than sodas with more sugar?
  • Why does solubility depend on natures of solute and solvent?
  • Why does sugar disolve faster than salt in hot water?
  • Why does table salt contain sugar?
  • Why does the body manipulate and synthesize only one type of enantiomer?
  • Why does the boiling point of a solvent change when a solute is added?
  • Why does the colour of copper sulphate fade on reaction with zinc?
  • Why does the concentration of your reactants affect the reaction rate?
  • Why does the energy of electrons increase with increasing electron shell number?
  • Why does the fire in a fireplace burn more briskly on a windy day?
  • Why does the human body need hydrogen? How does hydrogen help your body?
  • Why does the iron-nail got rust..?
  • Why does the Ka values of weak acids increase from left to right on the periodic table?!?
  • Why does the lemon condense when it's mixed with milk?
  • Why does the pH scale range from 0 to 14 in aqueous solutions?
  • Why Does the Pool Turn Blonde Hair Green?
  • Why does the presence of salts affect the solubility of gas in a liquid?
  • Why does the reaction take place on the central ring of anthracene in a Diels-Alder reaction?
  • Why does the soap makes bubbles when you rub it?
  • Why does the structure of ionic compounds causes the compounds to be hard?
  • Why does the temperature drop lower when adding salt to the ice than ice alone?
  • Why does the whole world think I'm gay?
  • Why does water cause many electrolytes to dissociate?
  • Why does water have such unique and unusual properties?
  • Why doesnt 50 mL of water and 50 mL of Ethanol add up to 100 mL?
  • Why doesn't an electron crash into the nucleus?
  • Why doesn't baking soda freeze?
  • Why doesnt calcium hydroxide react with sodium hydroxide?
  • Why doesn't glue dry and stick to the inside of the glue bottle?
  • Why doesn't glue stick to the inside of the bottle?
  • Why doesn't ice packed in sawdust melt quickly?
  • Why doesn't magnesium and a base react?
  • Why doesnt Na+ react with ammonia solution?
  • Why doesn't oil and water mix?
  • Why doesnt oxygen burn although it is a supporter of combustion?
  • Why doesnt plastic bottle melt when filled w/ water and placed into fire?
  • Why doesnt the general public use hydroelectric more often?
  • Why doesn't the repulsive electric force of protons in the atomic nucleus cause the protons to fly apart?
  • Why don't electrons and protons ever crash into eachother?
  • Why don't electrons fall towards the nucleus?
  • Why don't epson salt grow crystals?
  • Why don't people just call an alpha particle a helium atom?
  • Why drugs should investigate for their association constant, dissociation constant on the target proteins?
  • Why electrons are not annihilated by protons?
  • Why electrophile substitution in C6H5OCH3 occurs at ortho and para?
  • Why electrophilic substitution in C6H5NO2 mainly occurs at the meta position and at slower rate than in benzen
  • Why Energy will be evolve when bond is formed?
  • Why ethanol containing water can't be dehydrated by the use of CALCIUM CHLORIDE ??
  • Why ethanol is more volatile than methanol?
  • Why ethanol is used to to manufacture of chemicals such as chloroform,acetic acid etc.?
  • Why fish from sea(salty) do not taste salty ,what element protect from being salty?
  • Why flame is yellow?
  • Why fluids in our body considered solutions?
  • Why glue does not stick in the tube itself?
  • Why H2O has maximum density at 40c?
  • Why has lithium a low melting point?
  • Why have fluorine compounds of the heavier noble gases krypton & xenon been able to synthesize in recent years
  • Why hexane is a nonpolar solvent?
  • Why hot water is change to ice faster than cold water?
  • Why if you burn different types of food different amount of energy is released?
  • Why is 3-methylhexanamide actually CH3(CH2)2CH(CH3)CH2CONH2 in condensed structural formula?
  • WHY is 4 the maximum number of bonds a carbon atom can form with other atoms and non-carbon atoms?
  • Why is 94.1 millilters not 941000??
  • Why is a reference solution use to determine the presence of an ion?
  • Why is acid rain a problem?
  • Why is alcohol colder than water?
  • Why is aluminum hydroxide, Al(OH)3 amphoteric? What step in its synthesis accounts for this trait?
  • Why is atmospheric pressure lower at the top of the mountain than it is at sea level?
  • Why is beryllium carbide powder dangerous when it is wet?
  • Why is bleach white?
  • Why is brass different colors?
  • Why is calcium sulphate hemihydrate called 'Plaster of Paris'?
  • Why is calcium sulphate hemihydrate called 'Plaster of Paris'?
  • Why is carbon dioxide not considered organic?
  • Why is Carbonate (CO3) less soluble in water when compared to other compounds?
  • Why is chemical energy stored and what might cause there to be more or less chemical energy in a system?
  • Why is chemistry called central or pivotal science?
  • Why is Chemistry so damn hard??!?
  • Why is chemistry so gay?
  • Why is citric acid used rather than any other acid?
  • WHY is ClO3 diamagnetic?
  • Why is copper vessel covered with green coating in rainy seasons?
  • Why is extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
  • Why is food called 'stored energy'? what other substances contain stored energy?
  • Why is gas called gas if it is a liquid?
  • Why is gas more compressable than a liquid?
  • Why is geometry isomerism apply on alkene only/??
  • Why is gibbsfree energy of photochemical reactions greater than zero?
  • Why is glass transparent when all the materials used in it are opaque ?
  • Why is glucose solube in water and why is cyclohexane isnt?
  • Why is H+ smaller thatn another ion with a 1+ charge?
  • Why is HNO3 a stronger acid than HNO2?
  • Why is hydrochloric acid a better conductor than acetic acid?
  • Why is hydrogen peroxide kept in coloured bottles?
  • Why is hydrogen the most abundant element in the universe?
  • Why is is not necessary to know the exact concentration of the sodium hydroxide solution?
  • Why is is not necessary to know the exact mass of each acid sample?
  • Why is it a good idea to keep oxygen away from copper?
  • Why is it a good idea to use the same analytical balance to weigh the vial before and after the transfer ..?
  • Why is it dangerous to drink distilled water?
  • Why is it difficult to determine the enthalpy of formation of propane directly?
  • Why is it dificult to use standard boiling point procedures to determin BP over 100?
  • Why is it important to know how much solute is in a solution?
  • Why is it important to limit the intake of refined sugar?
  • Why is it important to position eyes parallel to the bottom of the liquid meniscus?
  • Why is it incorrect to alter chemical formula when balancing a chemical equation?
  • Why is it necessary to boil agar media before autoclaving?
  • Why is it not necessary to wait for the entire sample of water to freeze in order to determine its freezing?
  • Why is it not possible to see an atom?
  • Why is it so difficult for chemist to discover some of the elements?
  • Why is it that alcohol can never freeze?
  • Why is it that crops will die in the condition where soil are too acidic or alkaline?
  • Why is it, when diluting acid, important ti add concentrated acid to water instead of water to acid?
  • Why is latent heat of vapuorization more than latent heat of fusion.?
  • Why is lauric acid such a popular fatty acid for detergent and hand soaps?
  • Why is low presure colder?
  • Why is Magnesium Oxide's melting point much higer than Sodium Chloride's?
  • Why is NaCl a good energy conductor when dissovled in water, but not as a solid?
  • Why is naphthalene more soluble than cesium fluoride in benzene?
  • Why is NH3 a Bronsted-Lowry base and not a Arrhenius base?
  • Why is nickel tetracorbonyl tetrahedral where as tetracyano nickellate square plannar?
  • Why is nitric acid although a strong acid is not used as a standard acid?
  • Why is oxygen a supporter of combustion but does not burn?
  • Why is oxygen important to living things?
  • Why is ozone in the stratosphere gas but ozone in the stratosphere an undesirable gas?
  • Why is PCC run in organic solvent and Na2Cr2O7 not?
  • Why is phenacetin neutral?
  • Why is rust considered to be a mixture ?
  • Why is saccharin calorie free?
  • Why is salt used in making ice cream?
  • Why is sand used when grinding for extraction?
  • Why is sodium more reactive with water than alcohols?
  • Why is sodium preferred over potassium in industrial applications?
  • Why is sugar not very soluble in gasoline?
  • Why is Sulfur Dioxide called Sulfur(IV) Oxide?
  • Why is sulfuric acid used in making esters?
  • Why is talc used in the preparation of aromatic waters?
  • Why is telurium in Group 16 the least reactive element, or is it?
  • Why is the chemical compound for water written as H2O and not OH2?
  • Why is the delta H of vaporization higher than the delta H of fusion?
  • Why is the experimental molar mass of the sodium chloride so much lower than that accepted value?
  • Why is the experimental molar mass of the sodium chloride so much lower than that accepted value?
  • Why is the H+ ion referred to as a proton?
  • Why is the mass number of chlorine 35.5?
  • Why is the melting point of Sodium Chloride(800C) much higher than that of Chloride(-101C)?
  • Why is the oil layer separated from the vinegar layer in oil and vinegar salad dressing?
  • Why is the pKa of Urea ~0.2?
  • Why is the temperature of the solvent is important during a recrystallization?
  • Why is the term "dynamic equilibrium'' used to characterize some chemical reactions?
  • Why is the transmutation of lead to gold still impractical?
  • Why is the vapor pressure decreased when salt is added to water?
  • Why is there a -2 charge on a sulphate ion?
  • Why is there a reportable quantity for spilling Diethyl Amine (DEA)?
  • Why is there Ozone in the stratosphere, surely it's too heavy?
  • Why is transmutation specific to nuclear chemistry? Thank you.?
  • Why is using a glass vessel have no effect when determining the melting point of a chemical?
  • Why is water called a compound?
  • Why is water considered wet?
  • Why is water desalinization apparently not feasible economically?


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