Chemistry Questions and Answers

  • Help!!!!!!!?
  • Help!!!!!!?
  • Help!!!..The reaction between silver nitrate and sodium bromide produces silver bromide...?
  • Help, between copper and brass?
  • Help, I can't figure this one out! I keep getting 935mL. Any input?
  • Help, i need to write a paper on how i made my battery!!!?
  • Help, preeety pleaze!! :-P?
  • Help, what should i know about chemistry before testing?
  • Help...with chemistry (orders of a reaction)?
  • Help...with chemistry?
  • HELP..Science?
  • Helppp PLZZZZZZZZZZ!!!Chemistry.. show work please?
  • Help-Science question,,,, I wasn't there when they had this question taken up,,?
  • Here are a few chemistry questions i need help with.?
  • Here is a Chemistry Question I am having a problem with?
  • Here is a DNA sequence...ccaaagcgccatgtccaaaa give the proper mRNA sequence for this sequence?
  • Here is a question that is most likely quite easy for most of you to answer...?
  • Here's a tricky chemistry question. 10 points for best attempt.?
  • Hess's law is possible because:?
  • Hess鈥檚 law:?
  • Heterogeneous and Homogeneous Equilibrium?
  • Hexaamminecobalt(II) chloride?
  • Hexavalent chromium?
  • Hey guys...what are the desirable properties for an organic solvent that is to be used for solvent extraction?
  • Hey i need help with chemistry, What is the pH of HCL if [H+]= 1.0 x 10^-7.?
  • Hey I need your help?
  • Hey what chemistry experiment can you carry out to show if ethanol is a good replacement for hydrocarbon fuel?
  • Hey,wonder if you could help me. i am trying to find out how to identify methylpropan-2-ol and ethanoic acid?
  • HF is a corrosive gas. at 2.0 atm and 300 K, HF occupies a 4.5 volume. how many grams of HF are in the volume?
  • HgBr2 has a solubility of 0.50g HgBr2/100g H2O at 20 degrees Celsius. Calculate the molarity of HgBr2.?
  • Hi Chemists! Can you help me with this? Please?
  • Hi does anybody know the name of the two scientific journals.?
  • Hi everyone i have to write a report about???
  • Hi! Can you answer this for me? Please?
  • Hi. Could you guys walk me through this OCHEM problem.?
  • Hi. I am not a chemist. but iwantd to know why do we not titrate solutions hot. Why cool them 1st?
  • Hi..could you help me solve this ?
  • High Performance Liquid Chromatography Vs Gas Chromatography?
  • High potassium?
  • High resolution C-13 NMR spectroscopy?
  • High School Chemistry Problem... can you answer it please?
  • Hindenberg - could the film have picked up infrared?
  • History of atomic absorption spectroscopy?
  • Hmm another calculation problem please?
  • HNMR chemical shift characteristic?
  • HNO2 is otherwise known as?
  • Holding the temperature constant while adding more solute...?
  • Home acids?
  • Home remedy's used to clean pots and pans?
  • Home work help question please...?
  • Home work help, please?
  • Home work help?
  • Homeade rock candy experiment?
  • Homework Help on High School Chemistry?
  • Homework help please?
  • Homework help!!! physical science?
  • Homework Help: Chemistry?
  • Homework help?
  • Homework help?
  • Homework help---please---- An oxygen gas container has a volume of 20.0 L.?
  • Homogeneous mixture,element compound which is which?
  • Hos do you determine the charge of an ion by using the periodic table?
  • Hot girl needs chem help?!?!?
  • Hot saturated solutions are sometimes prepared and allowed to cool to obtain crystals quickly? Why?
  • House hold product combinations, really dangerous...?
  • Household alkalis?
  • Household Chemical Reactions?
  • Household Elements?
  • How polythene bags are made?
  • How alcohol dissolves a non-polar solutes like alkane ? Is it the dispersion force done the work ?
  • How and what is a Water bath for heating for some test tube?
  • How and where can I purchase pure sodium hyroxide?
  • How any moles are needed to obtain 1.5 moles of MgCO3?
  • How are absorbance and transmission spectra related?
  • How are atoms related to molecules in a sample of a compound?
  • How are babys made?
  • How are chemical indicators used in daily life?
  • How are elements different from compounds in terms of conductivity?
  • How are ethers basic according to the electronic concept?
  • How are hetrogeneous catalysts used to reduce air levels of air pollution from vehicles?
  • How are letters of the alphabet are used as a labeling system ( AAA, AA, A, C and D) in a battery?
  • How are the frequency and wavelength of light related?
  • How are trucks which carry helium weighed since helium weighs less than air?
  • How are trucks which carry helium weighed since helium weighs less than air?
  • How are UV rays blocked by sunscreen at a molecular level?
  • How are wavelength and frequencyof light related?
  • How atomic radius of group II metals is related to the trend in thermal decomposition of salts (group 2)?
  • How Boron nmr is usually taken?
  • How brass (alloy of cu and zn) is prepared?
  • How can 2 poisons, (Sodium & Chlorine) combine together to make edible salt?
  • How can a copper and HCl reaction be made to occur faster?
  • How can a hydrogen atom create so many spectral lines?
  • How can a solid structure be a conductor when in a solution or molten and how do ions move freely??
  • How can a substance such as water exist as a solid, a liquid, and a gas?
  • How can a write a top notch biological essay on smoking about ethical and moral issues?
  • How can an indicator change color!?!?
  • How can an organic molecule create crystals that look like ionic structure?
  • How can chemistry be used to conserve energy?
  • How can extract lead(pb) fom leadsulphate(pbso4)&lead peroxide(pbo2)?
  • How can i balance 3Sn+HNO3--->3Sn(NO3)2+NO+H2O?
  • How can I burn wire with acid?
  • How can I categorize plastics with reference to their chemical content?
  • How can I convert 8.2mL into moles???
  • How can I convert mEq Na+ to teaspoons of salt?
  • How can I depict the 5 types of Chemical Reactons?
  • How can I determine sulfate in a highly colored "wastewater"?
  • How can i determine whether an acid/a base is weak or strong?
  • How can I distinguish between a tertiary alcohol (2-methylpropan-2-ol) and water?
  • How can i distinguish sodium chloride from sodium iodide?
  • How can i do chemistry projects?Where can i find them?
  • How can I do this TURNKEY?
  • How can I explode a ordinary plastic bottle without anything like m80 or complicated ingredients?
  • How can i extract chitin from crab shells?
  • How can i fill a tank with gas?
  • How can I find a custom supercritical fluid extraction manufacturer?
  • How can I find the E-mail of Prof. Rainer Haag, Free University of Berlin?
  • How can I find the E-mail of R.Haag (the proffessor of chemistry)?
  • How can I find the empirical formula?
  • How can i find the mass of oxygen in Potassium chlorate?
  • How can i get cinnamaldehyde from benzyl alcohol and ethanol?
  • How can I get contact information for Swiss chemist Albert Hoffman - chemist who synthesized LSD?
  • How can I get my glowstick to work?
  • How can i get rusted metal?
  • How can i identify unknown metals in a flame test?
  • How can I know all possible reactions from a set of elements to an other?
  • How can I make a glowstick?
  • How can i make a golden penny?
  • How can i make a solid material by mixing some materials?
  • How can I make a volcano model for chemistry project?
  • How can i make an atom inspired cake?
  • How can I make Hydrogen Peroxide ?
  • How Can I Make Liquid Oxygen?
  • How can I make my volcano (science project) explode explode?!?!?
  • How can i make peter salt out of homemade stuff?
  • How can I make Phosphoric acid at home?It's for a science project.?
  • How can I make smoke?
  • How can I make water more polar? By adding salt? How?
  • How can I measure the volume of a sample of sugar???
  • How can i pass a hair follicle test?
  • How can i prepare a solution of 24mM with final volum of 500ml of MgSO4-7H2O?
  • How can I prepare the following concentration from this stock solutiion:?
  • How can i purified water in a chemistry class?
  • How can i recycle plastic?any creative ideas?
  • How can i retain water, on any thing's surface, after coating that surface with water? and in hotty condition?
  • How can I speed up the process of crystal formation? I need to make a homemade rock candy by tomorrow....?
  • How can I synthesize 2-pentanone using ethyl acetate as the ONLY source of C atoms?
  • How can I teach myself chemistry?
  • How can I tell whats an acid or a base?
  • How can I test a food sample for protein?
  • How can I write a balanced neutralization equation for the reaction between copper(II) hydroxide and nitric..?
  • How can i write an abstract for a mineral lab?
  • How can make Gold Resent?
  • How can one compare electronegativity of elements?
  • How can one distinguish between ethanol and dimethylether using mass spectrometry?
  • How can one distinguish diet soda from regular with no label?
  • How can one learn chemical equations,those are really big and hard to memorise??
  • How can one seperate oil from water?
  • How can one tell if a substance will significantly dissolve in water?
  • How can ph can modify the solubility of the drugs?
  • How can the refractive index property affect the electronic configuration in the substance.?
  • How can this be? Calling science experts?
  • How can this phenonmenon be explained?
  • How can u remove gold on something thats plated?
  • How can u tell if the reaction would go E2 or SN2 ?
  • How can u tell which compounds are electrolytes?
  • How can we calculate the density of water?
  • How can we define that a chemical ionic.nonionic or catonic?
  • How can we find the number of electrons in 1mole of water molecules?
  • How can we know the name of ester (carbon compound)?
  • How can we make Ti salt with TiO2 as raw material?
  • How can we reduce the concentration of water in isopropyle acetate?
  • How can you be sure that a slow reaction is not simply running out of reagents?
  • How can you be sure that a slow reaction is not simply running out of reagents?
  • How can you calculate the solubility of a gas in a liquid unfer different pressure condtions?
  • How can you cheat in chemistry?
  • How can you cheat in Chemistry?
  • How can you determine the concentration of a bleach solution (besides looking on the label)?
  • How can you get p-aminobenzoic acid from benzene?
  • How can you identify a redox reaction?
  • How can you increase the boiling point of water without making it impure?
  • How can you make a dilute solution of a strong acid?
  • How can you make a magnet? how can you destroy a magnet??
  • How CAN you make everything turn to GOLD!?
  • How can you make p-aminobenzoic acid from benzene? And cinnamaldehyde from benzyl alcohol and ethanol?
  • How can you nuetralize phospherous stains on clothes?
  • How can you speed up the dissolving process when making juice from frozen concentrate?
  • How can you tell how many valence electrons go with the transition elements?
  • How can you tell if a complex compound has an optical isomer?
  • How can you tell if something is amphiprotic/amphoteric?
  • How can You tell if You've found a diamond from a piece of glass?
  • How can you tell the difference between dispersion intermolecular force and dipoledipole intermolecular force?
  • How come hydrogen ...?
  • How come protonation does not make an isotope of the next element in the periodic table?
  • How come we can't make Gasoline from Synthetic oil?
  • How come when you heat things, some things melt but some burn?
  • How common is silver?
  • How could a colorimeter be used in this analysis?
  • How could earth appear when we see it from the surface of moon will it be spherical?
  • How could i tell when it is a london force in molecule when given? Like in hydrogen bonding,..?
  • How could u show that, when ammonia is mixed with dilute nitric acid a reaction has occurred?


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