Chemistry Questions and Answers

  • Anwer correct for 10 points!?
  • Any advice with AP Chemistry?
  • Any body knows a standard method for the analysis of Titanium and Vanadium from an effluent?
  • Any ideas on how to solve the carbon problem?
  • Any info on solute and slovent?
  • Any instrumental or conventional method to determine the purity of Hexamine?
  • Any link to chemistry experiments related to global warming?
  • Any material to withsatnd high temperature?
  • Any new Chemistry news or discoveries?
  • Any number of green plants can photosynthesiz glucose (C6H12O6)?
  • Any project related to chromatograpy?
  • Any website through which I can clear doubts in physics and chemistry O level examination past questions?
  • Any website where I can find a periodic table with valency and electronegativity along with the regular table?
  • Anyone able to help me with Chemistry through IM?
  • Anyone done this beer's law spectrophotometer lab?
  • Anyone know a chemistry site?
  • Anyone know about plastics and their production? I need help fast!?
  • Anyone know how to do these problems?
  • Anyone know the location of coal deposits in AUSTRALIA?
  • Anyone know the mwt of Phosphate Buffered Saline tablets?? Trying to get 0.1M PBS solution, with pH 6.8?
  • Anyone knows how to put egg in bottle?
  • Anyone knows stain degreaser or dish washing liquid's formular?
  • Anything about internal conversion in nuclous?
  • Anywhere in UK that sells potassium nitrate?
  • AP Chemistry Exam 2007-Help!?
  • Ap chemistry help desperately needed?
  • AP Chemistry Question?
  • AP Chemistry test tomorrow.?
  • AP Chemistry?
  • AP Chemistry?
  • AP Chemistry?
  • AP Chemistry?
  • Application Of Chemistry what are they? can u give examples?
  • Aquatic animals can breathe under water? give reason?
  • Aqueaous copper and chlorided reactions help?
  • Aqueous Potassium iodide is added to aqueous lead, nitrite to form solid lead, iodide and potassium nitrite:?
  • Aqueous solutions of sodium chromate+ calcium sulfide=calcium chromate precipitate+aqueous sodium sulfide?
  • Are acids like HCl, HBr and HF ionic or covalent?
  • Are alcohol (isopropyl 70%) swabs flammable?
  • Are alcohols likely to be more acidic or basic? Explain your answer?
  • Are all atoms made up of same type of matter?
  • Are all compounds of nitrate (NO3-) and chlorate (ClO3-) soluble?
  • Are all detergents surfactants? expalin?
  • Are any of the following metals magnetic?
  • Are any of these a Lewis acid?
  • Are artificial sweeteners really unstable chemically?
  • Are catalysts in living systems called zinc picolonate, substrates, rate boosters or enzymes?
  • Are charcoal burns, iron rust, bleach removing stains examples of redox reaction in everyday life?
  • Are Esters polar or non polar and what is the explanation.?
  • Are farts really flammable??
  • Are gasses or wind, matter?
  • Are neutrons smaller than protons? or are they the same size?
  • Are polycarbonates amorphous or crystalline?
  • Are protons from 2 different elements alike?
  • Are rubber and plastic related, the same, or completely different?
  • Are semiconductors usually metalloids or transition metals? Neither? Both?
  • Are substitution reactions (alkanes) faster or slower that addition reactions (alkenes) in organic chemistry?
  • Are surfactants added to water for cleaning clothes to:?
  • Are thar any magnetic liquids?
  • Are the chemical properties of graphite and diamond are same.?
  • Are the following compounds Nucleophile or Electrophile or Both?
  • Are the following compounds Nucleophile or Electrophile or Both?
  • Are the following reaction equations right?
  • Are there any certifications for a biology or chemistry major to demonstrate entry level job competency?
  • Are there any books out there that will help you ace chemistry?
  • Are there any ingredients in water which is good for us, that may be lost by boiling?
  • Are there any mercury compounds that are not toxic?
  • Are there any metals that can be digested, ie dissolved by our digestive systems.?
  • Are there any other logarithmic scaled units besides pH?
  • Are there any search engines that can locate a chemical formula through chemical descriptions and properties?
  • Are there any smart men out there looking for a good woman?
  • Are there any websites with simple explanations of HS Chemistry Math?
  • Are there different constitutional isomers for C3H4Cl2 ?
  • Are there different constitutional isomers for C3H4Cl2 ?
  • Are there different constitutional isomers for C3H7Cl?
  • Are there more isomers of C6H6 than C20H42? Really important.?
  • Are there more male chemist or female chemist. Please provide data to back it up?
  • Are there nine base pairs and if so what are they?
  • Are there other ways than heat to melt ice?
  • Are there two hydrogens on the oxygen double bond of 3-pentanone?
  • Are these acidic or basic?
  • Are these compounds ionic or covalent?
  • Are these really isomers (coz there structures hardly hav any difference)?
  • Are u smart enough?
  • Argent . Plz..?
  • Argent . Plz..?
  • Argent.Plz..?
  • Argon-39 decays to become Potassium-39. What is the nuclear equation.?
  • Arrange the following compunds in order of increasing boiling point, and give reasons for your answer?
  • Arrange the following in order of decraesing atomic size: At, Au, Sn, Pb?
  • Arrange the following species, HBr, HCL, HF, HI, in order of increasing dipole moment.?
  • Arsenic in Almonds?
  • Article...?
  • Artificial blood has been created using plastic molecules. Are you ready for this?
  • As chemistry, upcoming test please help!?
  • AS chemistry: Organic Chemistry; Nomenclature and Isomerism. What are the IUPAC rules?. Pls explain concept?
  • As if you're speaking to a three-year-old, please explain Avogadro's number.?
  • AS IGCSE chemistry practical please help?
  • As sugar is dissolved in water, how is a solution formed?
  • As the acidity of a solution increases, the pH value____;as the alkalinity of a solution increases, the pH va?
  • As the voltaic cell iw (Cu2+ and Al3+) operated, the mass of the Al(s) electrode decreases.?
  • Aside from plants, what consumes carbon dioxide?
  • Aspirin as Dead Battery Remedy...?
  • Aspirin from Salicylic acid and acetic anhydride... A few questions.?
  • Assign a set of 4 quantum numbers for:?
  • Assistance needed with oxidation numbers?
  • Assuming these reactants how would I complete the equation.?
  • At 25C, if the vapor pressure of water is 30 torr:?
  • At 25C, what is the pH of an acidic solution?
  • At 25掳C, in which phase of matter do most of the known elements exist?
  • At 700.k the reaction between nitrogen (N2) and oxygen (O2) occurs as follows 2N_2 +O+2 <--> 2N_2O?
  • At a given temp. you have a mixture of benzene (VP=745 torr) and toluene (VP=290torr)?
  • At constant temperature, 14.0 L of O2 at 0.882 atm is compressed to 1.75 L. What is the final pressure of O2?
  • At equilibrium what is the rate of production of reactants compared with the rate of production of products?
  • At equilibrium, what is the relationship between the rates of the forward and reverse reactions?
  • At room temp, which liquid metal alloy will not stick to copper?
  • At room temperature, which substance takes the shape of & fills the volume of any container into which it is?
  • At rtp and pressure 1.6g of a hydrocarbon occupy a volume of 2.4dm3,Calculate the Relative molecular mass?
  • At STP, 12.69 g of noble gas occupies 14.09 L. what is the identity of the noble gas?
  • At STP, 12.69g of noble gas occupies 14.09L. What is the identity of the noble gas?
  • At what pH is the anitbacterial action of phenol best?
  • At what temperature do common woods burn? And how hot does a magnifying glass burn things at?
  • At what temperature does black powder ignite? (Farenheit)?
  • At what temperature does concrete catch fire?
  • At what temperature does urine freeze?
  • At what temperature will hexane be distillated?
  • Atom models??
  • Atom question?
  • Atomic Mass...Please Help!?
  • Atomic Mass?
  • Atomic number is defined in terms of protons and usually not in terms of electrons.Why?
  • Atomic number?
  • Atomic orbitals combine most effectively to form molecular orbitals when:?
  • Atomic radius...?
  • Atomic structure question ?..?
  • Atoms are made of electrons. chackpiece have electrons which are motile.being an non-living how it is possible
  • Atoms looking at them?
  • Ausgleichen!!! CuSO4+KOH-->Cu(OH)2+K2SO4!!!?
  • Availability of a catalyst for Gobar (dung) Gas/Biogas to speed-up fermentation?
  • Average atomic mass?
  • Average Kinetic Energy?
  • Average mass?
  • Average Molecular Mass -- Composition of a Gaseous Mixture (2 parts)?
  • Average moles of NaOH requred to neutralize the HCl?
  • Avogadro number has sometimes been described as a conversion between the units of amu and grams. Use Flourine?
  • Avogadro's Law is a direct relationship between Amount of gas and?
  • Avogadros priciple. mathematic?
  • Aweak acid(HA)has a PKa value of 4.96.?
  • Axial and equatorial hydrogen?
  • Azeotrope ...?
  • Ba(ClO3)2 -------> BaCl + O2 How do you balance this?
  • Back to the question of what is the difference between battery and accumulator?
  • Bacteria cell?
  • Bad Chemistry...try again?
  • Baking Soda + Vinegar = Carbon Dioxide.?
  • Balalnce teh following chemical equations- 1)KClO3(heat) = KCl +O2 2)P+O2=P2+O5 3)CaCl2+H2SO4=CaSO4+HCl?
  • BALANCE 4NO+O2+NaCO3 --> 4NaNO+CO2?
  • Balance & identify reaction type (single replcmnt-metal / halogen, combination, decomp.., dble replcmnt, redox
  • Balance & write oxidation # of each atom in each element, reactants & products?
  • Balance (NH4)2 CO3 + Al(NO3)3 --> NH4NO3 + Al2(CO3)3?
  • Balance __NO2+__H2O ---> __HNO3+__NO?
  • Balance an Equation for me?
  • Balance CH3CH2CH2CH2Br+CH3CO2Ag?
  • Balance equations which represent nuclear reactions in uranium-238 decay series?
  • Balance NO + O2 + Na2CO3 = NaNO2 + CO2?
  • Balance the above equation with oxidation number method pb +s02--------- pbo + s?
  • Balance the equation CH4+NH3+O2=HCN+H2O?
  • Balance the following chemical equation?
  • Balance the following chemical equations.?
  • Balance the following chemical equations.?
  • Balance the following chemical equations-1)Fe+O2=Fe2+O3 2)Na+H2O=NaOH+H2 3) Mg+HCl=MgCl2+H2?
  • Balance the following chemical reaction equation: H2 (g) + O2 (g) ---> H20 (I)?
  • Balance the following equation?
  • Balance the following redox equations, using the oxidation number method.?
  • Balance the following redox reaction: Br- + MnO4- --> Br2 + Mn2+?
  • Balance the following redox reaction?
  • Balance the following skeleton redox equations using the half-reaction method. Reactions are in basic solution
  • Balance these solutions?
  • Balance this Chemical Equation?
  • Balance: CH3NH2 + O2 ----> CO2 + H2O + N2?
  • Balanced chemical reaction for the burning of octane?
  • Balanced Equation?
  • Balanced Equations?
  • Balanced reaction. oxidation reduction?
  • Balanced symbol equations for the blast furnace reaction?
  • Balancing a chemical equation?
  • Balancing an equation??
  • Balancing chemical equations, do you always carry over to the products side, the subscript (2) in diatomics?
  • Balancing Chemical Equations...?
  • Balancing Chemical Equations?
  • Balancing Chemical reactions?
  • Balancing Equation in Both Acidic and Basic?
  • Balancing equation?
  • Balancing equation?
  • Balancing equations using the half-reaction method.?
  • Balancing equations!!??
  • Balancing equations?
  • Balancing Equations?
  • Balancing Equations?
  • Balancing Equtaions?


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