Chemistry Questions and Answers

  • Acetylene purity test?
  • Acid and Base?
  • Acid, mushrooms or a good strong cup of coffee?
  • Acid-base equilibria question help?
  • Acidic and Basic?
  • Acidic atmosphere...?
  • Activated Charcoal?
  • Active carbon sanitization?
  • Actual meaning of hydophilic & hydrophobic components?
  • Adding ZnO to Hcl what will happen?
  • Additional question to Ethylene Dibromide?
  • Addresses of analytical labs in bangalore city?
  • ADP and AMP?
  • ADP conversion?
  • ADP is a component of?
  • After 50 kernels have popped, how many kernels pop in 5 seconds?
  • After a urine sample has been collected how long can it be stored before it is analyzed for chemicals?
  • After the reaction has gone to completion, which gas remains in excess and how much is present?
  • Aga cookers used to use KHEISELGERE as a heat insulator. What is it manufactured from?
  • Agent orange?
  • Air pollution in pennsylvania causes ______ in new england becuz the wind blows the pollution into new englan?
  • Alcohol a fuel?
  • Aliphatic and Aromatic Hydrocarbons Experiment: What're the equations for the tests giving positive results?
  • Alkaline and acidic solutions?
  • Alkaline hydrolisis?
  • Alkalis can be used for the following purposes except ______________?
  • All free elements have an oxidation number of...?
  • All monatomic ions have oxidation numbers equal to the what?
  • All monatomic ions have oxidation numbers equal to the?
  • All of the following are diprotic acid except--?
  • All of the following are strong electrolytes except:?
  • All of these have 7 electrons in their outermost energy levels except Cl, I, H, Br, F?
  • All the periodic motions are repetitive but all the repetitive motions are not periodic . Explain .?
  • Also another question?
  • Aluminum reacts with sulfuric acid, which is the automobile batteries. if 20.0 grams of Al is placed into a so
  • Always wondered this. Why doesn't water create fire, as opposed to put it out?
  • Am I right ??
  • Americans, help. do you use the minim (min) in the U.S as a unit of liquid volume measurment?
  • Amino Acid Jokes?
  • Ammoxidation of toluene occurs in liquid phase at 388K and 60Psi. Is it true?
  • Amongst ethanol, methanol, propanol, butanol, pentanol and octanol, which is the best fuel for heating water?
  • An airbag needs 15 mols of nitrogen gas, so how many grams of sodium azide should be installed in the airbag?
  • An alkene is a carbon compound that contains a _____ bond?
  • An alkyne is a carbon compound that contains a _____ bond.?
  • An ammonia solution has a pH of 8.30, what is the [OH-] in this solution?
  • An element has an electron configuration that ends in 5d4. Which column is it in?
  • An element with protons and 14 electrons has what atomic number?
  • An HCl solution has a pH of 3.10, what is the [H+] in this solution?
  • An HCl solution has a pH of 3.10, what is the [OH-] in this solution?
  • An HCl solution has a pH of 3.10, what is the [OH-] in this solution?
  • An imaging technique that detects the energy emitted by hydrogen atoms in a magnetic field is known as?
  • An increase in temperature usually:?
  • An inert gas is bubbled into a rigid, sealed container of water. An increase in gas pressure would do what?
  • An ion has 17 protons, 18 neutrons, 18 electrons. write down the mass number, atomc number and its formula.?
  • An ionic bond between metals and oxygen produces what?
  • An offer to someone?
  • An organic compound composed of carbon and hydrogen connected only by single bonds is what?
  • An unknown acid taht we will call HA ionizes 3.9%. If the concentration of the acid was originally 0.222M..?
  • An unknown acid that we will call HA ionizes 3.9%. If the concentration of the acid was originally 0.222M...?
  • An unstable atom?
  • Analysis of water for dissolved oxygen?
  • Analysis of water for dissolved oxygen?
  • Analysis shows 2.431g of magnesiumm, Mg chemically combined with ecxactly 1.6g oxygen O2, to form an oxide?
  • Anhydrous Ammonia?
  • Anions is the strongest base?
  • Anode Cathode Chemistry Question?
  • Another hard question!!!?
  • Another hard redox reaction...??
  • Answers for Chemistry PLZ?
  • Answers to my chemistry lab manual?
  • Any chemist or chemistry major, etc?
  • Any clear insulators that work well?
  • Any reaction has a apposite reaction according to newton third law but why whenpull the cot horse pull the c?
  • Anybody knows about Alchemi/y ?
  • Anybody use laundry detergent for dishwashing liquid?
  • Anyone has answers to this question on Balancing Equation?
  • Anyone have experience with Cold Water Extraction?
  • Anyone have pyro websites?
  • Anyone know the significance of avidin and biotin in spectroscopy?
  • AP Chem Summer Homework-- finding diameter of a model?
  • Ap Chem Trouble?
  • Ap chemistry?
  • Aqueous solubility and pH?
  • Aqueous solution help?
  • Arange from lowest pH to highest pH Plz!?
  • Are all acids or acidic substances corrosive to metals?
  • Are all d elements isotopes?
  • Are all isotopes radioactive?
  • Are all types of oil flammable??
  • Are amines soluble in petroleum ether?
  • Are any of these a brine solution? KCl(aq), NaBr(aq), KBr(aq), NaCl(aq)?
  • Are batteries examples of galvanic cells?
  • Are colloids heterogenous mixtures or homogenous mixtures?
  • Are computers flammable?
  • Are diffusion and absorption is the same?if different, what are the differences?how about adsorption?
  • Are farts really flamable?
  • Are gases more rigid than liquids or solids?
  • Are jewelers able to melt different karats of gold (ex 14 and 18) together to make one piece of jewelry?
  • Are lipid's organic compounds?
  • Are lipids(oils) soluble or insoluble in ethyl acetate?
  • Are L-peptid amino acids found in butter?
  • Are metallic structures made of ions or atoms?
  • Are metals a natural or man made substance?
  • Are my answers correct?
  • Are organic liquid's lighter than water?
  • Are physics and chemistry projects removed from cbse 12th syllabus?
  • Are plastic water bottles safe to re-use or are they carcinogenic based on their DEHA content?
  • Are plastics still made with PCB's?
  • Are the followind acids or base: Hydrogen peroxide, Saline solution, and Pepto-Bismol? Please and thank you?
  • Are the following will increase or decrease the calculated density of the substance?
  • Are there any combustible metals?
  • Are there any real Chemists on here ??
  • Are there any solvents that dissolve concrete ?
  • Are there any theories/possibilities about sending tropospheric ozone to atmosphere?
  • Are there catalysts that can convert Carbon Dioxide (CO2) into Carbon (C) and Oxygen (O2)?
  • Are there different degrees of stability in nuclear material?
  • Are there legit products to help you pass a hair follicle drug test?
  • Are water molecules more active in gas, in liquid or in a solid state?
  • Arrange the acids HOBr,HBrO3,HBrO2 in order of increasing acid strength. Choices below!?
  • Arrange the following in increasing order?
  • As a chemical machine, what is the efficiency of the human body?
  • As the [H+] in a water solution increases the [OH-] decreases?
  • Ascorbic acid is vitamin C, C6H8O6,(176g/mol) is a diprotic acid where ka1=6.8*10^-5 and ka2=2.7*10^-12.?
  • Asperin is 60.00% carbon, 4.48% hydrogen and 35.53% oxygen. What is the emperical formula for aspirin?
  • Aspirin (C9H8O4) is an acid which can be titrated with a base to determine purity. If an aspirin tablet...?
  • Assingment help!?
  • Associative orderings, a question about group qualities and singularity.?
  • Assume all the sulfur in the coal ends up as SO3.?
  • Assuming Bonds took Steroids. . . .?
  • Assuming constant temperature, what volume would a gas occupy at 82.3 kPa if the volume is 344 cm3 at 110 kPa?
  • Assuming ideal behavior, how many grams of acetylene are in the tank?
  • Aswer these with writing whole answers?
  • At 108 degrees C, the pressure in a 10.0L flask is 874mm Hg. How many moles of gas are in the flask?
  • At 570 mm Hg and 25C a gas sample has a volume of 2270mL.?
  • At 570. mm Hg and 25°C, a gas sample has a volume of 2270 mL.?
  • At constant pressure the temperature of a 4.00 liter sample of gas is decreased from 400 K to 300 K. ...?
  • At constant pressure the temperature of a 4.00 liter sample of gas is increased from 300 K to 400 K. continued
  • At constant temperature the pressure on a 10.0 liter sample of gas is changed from 1140 torr to 1.00 atm. What
  • At constant temperature the pressure on a 6.0 liter sample of gas is increased from 1.0 atm to 2.0 atm. cont.?
  • At constant temperture, a sample of helium at 760 torr in a closed container was compressed from 5.00L - 3.00L
  • At home chemistry Labs?
  • At STP, temperature and pressure have the values of?
  • At what temperature does air condense?
  • At what temperature does water boil on the top of Pikes Peak, Colorado?
  • At what temperature will the celcius scale and the fahrenheit scale be numerically equal?
  • Atheists: Do you believe in Chemical evolution? That Hydrogen "evolved" into uranium?
  • Atoms of 16O, 17O, and 18O have the same number of.?
  • Atoms..?
  • Attributes of Similar Chemical Formulas?
  • Average Percent Error?
  • Azonium salt reaction mechanism??
  • Back Issues of Journal of Chromatography online?
  • Bakelite upper and lower temperature limits?
  • Baking Soda Chemistry Question?
  • Balance by partial equation method:-?
  • Balance net ionic reaction?
  • Balance redox reaction?? I've got some problem with this: PbO2 + S2O3-2 -----> PbO + SO3-2?
  • Balance the equation of H2SO4 + NH4OH--- (NH4)2SO4 + H2O?
  • Balance the equation:NH3(g) + O2(g) --> N2(g) + H2O(l)?
  • Balance the ff: 1. Mg+N, 2. HCl+NH4(OH3), NH4PO4+Bl(2N), 5. CO2+BaO, 6. NH4+CH3COOH,?
  • Balance the following equation, representing a reaction that takes place in acidic aqueous solution.?
  • Balance the following redox equation using the smallest integers possible and select the correct?
  • Balance the following redox reaction in basic solution. Cl207 (g) + H2O2 (aq) -- ClO2- (aq) + O2 (aq)?
  • Balance this chemistry equation (10 points) ?
  • Balance this equation. Prove that it obeys the law of conservation of mas by using fomula masses.?
  • Balanced Chemical Equation?
  • Balanced Equations?
  • Balancing Chemical Equations?
  • Balancing equation problem sum?
  • Balancing equations?
  • Balancing Redox Equations?
  • Balancing Redox Reaction - Spontaneous or not?
  • Balancing RedOx Reactions in Acidic or Basic Aqueous Solution?
  • Basic Chem / Name the compounds site?
  • Basic Chem Questions?
  • Basic chem unit based word problem but I am bad at word problems, please help!?
  • Basic chemistry question!!!?
  • Basic ingredients for Thermite?
  • Basic ingridents to gun powder?
  • Batteries Question?
  • Battery - Lemon, Potato, Beer, etc?
  • Battery components?
  • Battery experiment - If I can't find zinc, which will act as my electrode, can I use a galvanized product?
  • Battery Question!?
  • Battery question?
  • Beakers and flask contain calibrations for volumes of liquids but are not used in performing accurate measurem
  • Beer's law and absorbance using a spectrophotometer?
  • Benzene considered inert. How does the body metabolize benzene?
  • Benzophenone oxime mechanism?
  • Benzylechloride can be prepared from toluen by chlorination with-?
  • Besides H2O, are there any other naturally occuring chemicals/compounds that people can just drink down?
  • Besides helium, what else can i put in a balloon to make it rise?
  • Best organic chemistry guide?
  • Between biochemistry and chemistry major, which one is harder to learn and why?
  • Bile salt and?
  • Biochemistry Questions?
  • Bleaching hair what is 70ml in mg help pleasse?
  • Boiling an egg! Help!!?
  • Bond energy ??
  • Bond Order and Bond Energy?


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