Chemistry Questions and Answers

  • A) How many unpaired electrons?
  • A) Temporary or Permanent changes?
  • A) What is the pH of a 3.1 10-5 M HClO4 solution?
  • A. If the benzophenone used to prepare triphenylmethanol was wet, what organic by-product would form?
  • A.P. Chemsitry Question dealing with concentration of OH-?
  • A__ reaction is where a larger molecule and a smaller molecule are produced when 2 molecules react with each?
  • About a science experiment for surface tension...?
  • About alcohol.?
  • About basic chemistry questions...help me?
  • About career pls help?
  • About chemistry... Alcohol?
  • About fish and oxygen at the bottom of a lake...?
  • About flame?
  • About glycerol?
  • About lab apparatus.?
  • About sunless tanners and blood?
  • Absolute zero?
  • Absorbance and transmittance?
  • Accelerated Stability Testing?
  • According to De Broglie, wavelength = h/mv, then for a stationary object, mv = 0, so is wavelength = infinity?
  • According to the Bronsted-Lowry Theory of?
  • According to the Bronsted-Lowry theory, a base is a(n)?
  • Acetal formation mechansim?
  • Acetaminophen.?
  • Acetic acid and ethyl alcohol?
  • Acetic acid?
  • Acetone ??
  • Acetone and 2-methyl propanol are the ozonolytic products of which compound?
  • Acetylcholine esterase, 3.0mg, was dissolved in 10.0 ml of solution. From this solution,0.60 ml was added to a
  • Acetylsalicylic acid (asprin) behaves as an acid according to the below equation...?
  • Acid + base reaction?
  • Acid and Base questions?
  • Acid and Bases HelP!?
  • Acid and bases question?
  • Acid and bases?
  • Acid and water?
  • Acid base reaction with Tannin?
  • Acid Base Reactions?-?
  • Acid base solutions.?
  • Acid Base Titration - end point?
  • Acid base titration, best answer gets 5 stars guaranteed?
  • Acid Base Titration?
  • Acid or base..?
  • Acid or Base?
  • Acid rain + marble?
  • Acid Solution question.?
  • Acid, base, or neutral?
  • Acid/Base Chemistry Question...HELP!?
  • Acid/base chemistry questions??
  • Acid/base dilution question?
  • Acid/Base Equilibria (hard)?
  • Acid/Base Equilibrium problem?
  • Acid/Base solutions?
  • Acid-base conjugate pair differ by?
  • Acid-Base help.?
  • Acid-Base properties of salts?
  • Acid-base reaction?
  • Acid-Base Titration Question. Some Help On How to Begin Writing Equation!?
  • Acid-base titration question?
  • Acid-base volumetric analysis in industries?
  • Acidic basic or neutral?
  • Acidic, basic, or neutral?
  • Acidity Help?
  • Acidity level in liquids??
  • Acids and Bases help.?
  • Acids and bases question...?
  • Acids and bases...need help!!!!?
  • Acids and bases?
  • Acids and bases?
  • Acids and bases?
  • Acids and Bases?
  • Acids and Bases?
  • Acids and Bases?
  • Acids and Bases?
  • Acids and Bases?
  • ACS GOB prep help.?
  • Activated carbon?
  • Active metals like sodium react with cold water, setting free hydrogen and forming a(n) ______ solution.?
  • Add 24mL of 1.0 M NaOAc (sodium acetate) to 10.0 mL of 1.0 M HOAc. The measured pH is 5.05. [H+] = 8.91*10^-6
  • Adding HCl to the mixture..what would happen?
  • Adding nitric acid increases the solubility of which compound? KCl, Pb(CN)2, Cu(NO3)2, NH4NO3, or FeSO4?
  • Adding water to titration?
  • Addition of HBr to propene is electrophilic addition reaction . Explain this?
  • Advantages and disadvantages of calcium in the water supply?
  • Advantages and uses of fireworks?
  • Advantages of dilution?
  • After acidification with dilute nitric acid, a colourless solution of X reacts with aqueous silver nitrate to?
  • After burning, why does coal leave a solid residue but gasoline completely disappears into the air.?
  • After converting a metal to a different metal, such as silver, could the silver turn back to before?
  • After working with HNO3, a student noticed that she had a yellow spot on her hand. What migth be the reason/?
  • Ag+(aq) + e- ----> ______.?
  • Again organic chemistry please help?
  • Agenda with acetone?
  • Ahhh!!!please i need help with this chem question?
  • Ahydrocarbon contains 88.88% carbom. what is the empirical formula for it ?
  • Aieee questions ..plz help answering them..with explainations if possible?
  • Al+NaOH+H20=?
  • Albert Einstein, Benjamin Franklin, Isaac Newton, the Periodic table, and ME?
  • Alcohols and acids?
  • Aldehydes & Ketones?
  • Alexander Litvinenko death?
  • Alka Seltzer and 5ml of water is put in a balloon. What is the chemical equation/formula for this lab?
  • Alkali in bleach?
  • Alkali in milk?
  • Alkali in soap?
  • Alkaline is a water...Do anybody know alkaline history and benefits???
  • Alkanes may be prepared by reacting an alkyl halide with metallic magnesium in the presence of dry ethyl ether
  • Alkenes and Hydrogen?
  • All about mothball with engine?
  • All spontaneous processes are exothermic. Melting of ice is also spontaneous. But it is endothermic. Why?
  • All the atoms of azobenzene lie in one plane, whereas those of hydrazobenzene do not. why?
  • All the chloride in a 5.00g sample of an unkown metal chloride is preciptated as AgCl with 70.9mL...?
  • Alloy-0.0898mol Al &0.0381 mol Mg. What is mass percentage of Al & Mg in the alloy?
  • Aloxide(hydrated)?
  • Alpha and beta radiation?
  • Alpha hydrogens?
  • Alpha particles emmission decreases the atomic number of the parent nucleus by four units? True or false?
  • Alternat to Methanol?
  • Although coordination complexes are particularly important in the chemistry of the transition metals some main
  • Alum problem?
  • Aluminum - why is it readily available?
  • Aluminum hhydroxidw is an amphoteric substance. it can act as either a bronstead-lowry base or a lewis acid.?
  • Aluminum metal is added to a solution of copper (II) chloride?
  • Aluminum requires relatively little protection from corrosion because?
  • Am I making copper carbonate?
  • Amino acid help?
  • Amino acid structures?
  • Amino Acids?
  • Amino Acids?
  • Amino Acids?
  • Ammeter and Voltmeter!?
  • Ammonia Gas + Copper Sulfate = ???
  • Ammonia in household substances?
  • Ammonia is classified as a weak base in water.?
  • Ammonia?
  • Ammonium Nitrate plus Methanal produces Nitric Acid?
  • Ammonium Sulfate?
  • Amphoteric?
  • An ______ reaction is where the reaction stops before all the reactants are used up.?
  • An acidic solution reacts with Magnesium Carbonate to produce a gas. What is the formula for the gas?
  • An alcoholic iodine solution ("tincture" of iodine) is prepared...?
  • An alkaline earth metal, M, combines with a halide, X. Will the compound be ionic or covalent?
  • An alkene was prepared by the dehydration of pentan-1-ol using concentrated sulphuric acid.?
  • An AM radio station operates at a frequency of 1080 khz. What is the wavelength?
  • An aqueous solution contains dissolved C6H5NH3Cl and C6H5NH2. The concentration of C6H5NH2 is 0.50M .?
  • An atom of argon rarely bonds to an atom of another element because argon atom has?
  • An atom of flourine has 9 electrons how many electrons will be in each energy level?
  • An equimolar mixture of two enantiomers is not optically active.y?
  • An example of a chiral molecule with NO asymmetric carbon. Please fast!?
  • An example of a mineral made up of a pure element is?
  • An example of a nonpolar solvent is?
  • An HNO3 solution has a pH of 3.47. What volume of 0.015 M LiOH will be required to titrate 65.0 mL of the HNO3
  • An ice cube w/ a mass of 40.0 g melts in water originally at 35 degrees cel.?
  • An ideal solution of toluene (vapor pressure 21 torr) and cyclohexane (vapor pressure 67 torr) in which the mo
  • An increase of pressure always ______ the solubility of gases?
  • An increase of temperature ________ the solubility of gases?
  • An investigation is carried out in which evidence is collected for the following chemical reaction?
  • An oxidation reaction occurs?
  • An unknown monoprotic acid has a pH of 1.790.?
  • An unknown salt Y was put through two tests:?
  • An unknown sample contains 0.2618 mol of MgCO3. How many atoms of oxygen?
  • An unknown sample contains 0.6535 mol of ZnCl2. How many atoms of chlorine does this sample contain?
  • Analyst of sparklers?
  • Analytical chemistry: How to calculate the sulfur content?
  • Analyze a powder?
  • Anhydrides versus esters?
  • Anhydrous form of a hydrate?
  • Animal and plant cells?
  • Anode question?
  • Anode reaction question.?
  • Another about mercury?
  • Another buffer problem?
  • Another chem assignment question :(?
  • Another chemistry help question??
  • Another Chemistry pH Question?
  • Another chemistry problem. (mm, density, temp, pressure, pv=nrt, etc)?
  • Another chemistry question...?
  • Another chemistry question?
  • Another Chemistry question?
  • Another Chemistry Question?
  • Another confusing chem question!!?
  • Another example please???
  • Another gas stoichiometry problem..please help!!?
  • Another help question?
  • Another pH problem?
  • Another Reaction Kinetics -- Chemistry Multiple Choice Questions please help! #'s 6,7,8,9?
  • Answer Qucikly please!!! Thank you very much :)?
  • Answer Quickly Please!! Thanks?
  • Answer Quickly Please!!! Thank you?
  • Answer quickly Please!!!! THANKS?
  • Answer Quickly Please!!!!!!! Thank you?
  • Answer Quickly!!! Please Thanks?
  • Answer Quickly!!! Than YOu!?
  • Answer Quickly!!!!!?
  • Answer the following two questions for the nuclide 19F?
  • Answer the following two questions for the nuclide 90Zr?
  • Answer this chemistry problem and get 10 points... i am a high school STUDENT...!?
  • Antacids are bases. People use the antacids to __________________ the acids in the stomach.?
  • Antifreezes?
  • Antimetabolites? methotrexate?


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