Chemistry Questions and Answers

  • HELP?!confused?chemical calculations (stiochiometry)?
  • HeLp?!?!?!?!?
  • HELP?? Please!?
  • help?--chemistry?
  • Henry's Law. Check my work!?
  • Hep with proton NMR?
  • here are the words intensive,enthalpy,heat,extensive fill them in?
  • Here is a noodle picker for you guys!?
  • Here is my question?
  • here is the question thanks?
  • Here's a q on the Chem test?
  • Here's a trivia question. What is the chemical formula for Hydroxic acid, and what is its common name?
  • Hess's Law Manipulation for change in the Heat of Reaction Problem?
  • Hey can you help?
  • Hey geniuses!! Can you extract oxygen from carbon dioxide?
  • Hey i need help presenting about ANTACID??!!?
  • Hey my friend Roland and i are holding a mass anwsering?
  • Hey who will answer...this..very Mind thinking..?
  • Hey! Can you help me with this problem? :)?
  • Hey, Why does a super saturated (created at a high temperature) solution crystallize when cooled?
  • Hi friends plz help me in solving this questions .Chemistricians....plz...?
  • HI i have an exam on the preparation of salts.?
  • hi please help thanks?
  • Hi please help its EASY quick!?
  • hi please help thanks!!?
  • Hi please help with the net ionic equation of HCl + Cu(OH)2 (solid)?
  • Hi! Can someone help me with a particular problem I'm having trouble with?
  • HI! I need information about different types of Teflon Tapes?
  • hi! what group does the element 'neon' belong to? because i researched and some said 18, some said 10?
  • Hi!The OH group attached to a benzene ring can be tested for by specific chemicals tests. what are they?
  • Hi!The OH group attached to a benzene ring can be tested for by specific chemicals tests. what are they?
  • Hi, What's the differrence between saturated, unsaturated and supersaturated solutions?
  • Hi,is it another method for qantitative determination of Selenium sulphide in a shampoo other than OF BP one.?
  • hi. I need at least 10 facts about the element silver.?
  • Hi..Could anyone pls tell me the color of the ff aqueous solutions?:Ca(No3)2,Hg2(NO3)2,NH4Cl,KCNS,MgCl2.?
  • High blood cholesterol levels are above ________mg/100ml of blood.?
  • High purity DI water compabatility with Stainless Steel?
  • hii,i've gotta do a project on applied chemistry with special focus on modern medicine & surgery.please help
  • History of the Periodic Table?
  • Hmmm...?
  • HNO3+Al-->?
  • ho made the c-o-two fire extinguisher pdc-20?
  • HOH Breakup and Carbon Bond?
  • Homemade stinkbomb?Is it possible to make at home?
  • Homework Help! Part 1!?
  • Homework Help, science!?
  • homework help---How many grams of carbon are in 34.0 g propane?
  • Hot and Cold question?
  • household circuits...?
  • household products with acids and bases?
  • How come mercury is red in thermometers and silver in it's natural form?
  • How 2 find molecular formula when given molecular mass & empirical formula?
  • how accurate is it to assume constant specific heat when calculating the enthalpy of dry air?
  • How Acid rain affecting,plant,animal,marble,building,of earth?
  • how aluminate ion can be removed from water?
  • How and where in nature are the following elements on the periodic table found?
  • How are "combustion reactions" defined?
  • How are 1Normal HCL,1Molar HCL,1 Molal HCL are prepared ?
  • how are alkanes, alkene and alkynes and how are they different from each other?
  • how are chiral drugs separated into their enantiomers?
  • How are column and paper chromatography similar? How are they different?
  • How are covalent compounds named?!?
  • How are HCL and CH2COOH similar and different?
  • how are hexane and C6H14 different?
  • How are ions and ionic compounds named (chemistry)?
  • How are lead compounds formed in vehicle engines?
  • How are Optometry and chemistry related?
  • how are polymers made?
  • How are soap and NaCl chemically differnt and similar?
  • How are steroids made?
  • how are the parts of the atom arranged?
  • how are the parts of the atom arranged?
  • How are we going to calculate the buffer capacity?
  • how are zinc and sodium extracted and purified?
  • how big is 1/3 centimeter?
  • How big is a water molecule, a hydrogen peroxide molecule, and an iodine (I2) molecule in pm?
  • How calories affect water?
  • how can we test purity of water in house?
  • How can 560.00ml of a 5.6M solution of HCl be made if the only available concentration of HCl is 8.5M?
  • How can a catalyst lower the activation energy?
  • How can a colloid be destroyed?
  • How can a water bottle shrink?
  • How can acetone be miscible in both hexane and water?
  • how can an ion be removed from an aqueous solution?
  • How can Chlorine be distinguished from Bromine and Iodine?
  • how can dtergent reemove the oil stain??
  • How can electrical energy (electricity) be used to produce mechanical energy?
  • How can HEAT and ALCOHOL denature and bring coagulation to PROTEIN <in egg>?
  • How can i apply the theory that egg floats with the right amount of salt to life?
  • How can I calculate salinity if all I am given is volume and freezing point?
  • How can I calculate the valency of an element?Pl. suggest some formulas.?
  • How can I change cm to mL?
  • How can I clean and polish a rusted knife blade?
  • How can I compute the density of the human body?
  • how can i create truth serum?
  • How can I determine the Mass percent of water in the hydrate and the formula of the hydrate??
  • How can i extract gold from a gold plated component?
  • How can I find how many grams are in .1M of AlCl3?
  • how can i find the answer to this ionic compound?
  • How can I find the chemical name using molecular formula? Is there any website available?
  • how can I find the concentration of acid needed to make 1 liter of sulfuric acid that has a pH of 4?
  • how can i find the price of lead zinc historically?
  • how can i find the vol of the vapor?
  • How can i get A in my chemistry coursework for skill (P) planning?
  • how can i get a job in chemical industries in canada after m.sc organic chemistry.?
  • how can i get data about egyptian lab chemicals market?
  • How can I go about these hydrocarbon conversions?
  • how can i increase the pH of copper chromite?
  • How can I know that kerosene & butter r saturated or unsaturated?
  • How can I make hydrogen with salt and metal alloy (and of course water). With no electricity usage.?
  • How can I make a 40% NaOH solution?
  • How can I make a chemistry class about air and the gases that make up air more fun for the students?
  • How can I make clear ice cubes?
  • How can I make gun powder out of bat droppings?
  • How can I make home made potassium chloride?
  • how can i oxidise a jewelry?
  • How can I predict whether a precipitation reaction will occur when aqueous solutions of ammonium sulfate and?
  • how can I prepare a 2.4% dilute egg albumin solution?
  • how can i separate the Co2 and Co and No2 and No and So2 from each other?
  • How can i separation quartz from clay for example kaolin (kaolinite,quartz,...)?
  • How can I tell if a molecule is soluble in various types of liquids?
  • how can i tell if something is made of silver?
  • How can I tell which elements have larger London Dispersion forces?
  • How can I test for the sodium level of drinking water at home?
  • How can I test if an unknown metal is lead?
  • How can i UNDERSTAND science?
  • How can lead poisoning affect people?
  • How can mechanical energy be used to produce electrical energy (electricity)?
  • how can mixtures be separeted?
  • How can NEVIRAPINE be synthesised?
  • How can nitrogen have 5 valencies?Can anyone explain?
  • how can one apply the methods of paper chromatography in the identification of unknown amino acid?
  • How can one get rid of the nascent oxyen in the NaOCl without neccesarily heating the NaOCl?
  • How can people use paper chromotography in daily life?
  • How can proper experimental methods prepare a researcher for the event of making an unexpected discovered?
  • how can sound waves be waves of pressure changes if you can hear several people talking at the same time?
  • how can steroids effect the body chemically?
  • how can the disolving process be described as a result of random molecular motion?
  • How can the instantaneous rate of reaction be determined from the graphs?
  • How can the rate constant be determined from the graphs?
  • How can u compare the rates of effusion of two gases in a mixture?
  • How can u separate tellurium dioxide from sulfuric acid?
  • How can water act as an acid?
  • How can water be separated from ink in a solution?
  • how can we bond ions?
  • how can we convert a nitrile into an aldehyde ( RCHO) ?
  • how can we find the presence of nitro group qualitatively in nitrobenzene?
  • How can we melt graphite?
  • how can we remove flouride from water sample in an economic method besides lime addition?
  • How can you determine if an acid is stronger than another or one base is stronger than another?
  • How Can You Determine The Difference Between Iodized And Non Iodized Salt?
  • How can you determine the molarity of a sodium hydroxide caustic?
  • How can you determine whether or not ions are being produced?
  • How can you determine whether this equation is balanced?
  • how can you distinguish between BaOH2 and CaOH2 ?
  • How can you find the concentration of 0.25M from Hydrogen peroxide ( 100 volumes). Please show the working?
  • How can you find the latent heat of the fusion and the vaporization of H20 mathematically?
  • how can you isolate the ester?
  • How can you make Hydrogen Proxide (h2o2) better?
  • How Can you Make your Own pH Paper?
  • How can you separate the compound H2Na?
  • How can you separate the compound OCl?
  • how can you seperate barium sulfate, BaSO4, from calcium sulfate, CaSO4?
  • how can you show that air has mass?
  • How can you synthesize 2-chlorobenzoic acid from nitrobenzene?
  • How can you tell if a compound is a formular unit or molecule?
  • How can you tell if a double replacement reaction will occur?
  • How can you tell if a substance is ionic or not?
  • HOw can you tell if water is polluted?
  • how can you tell the difference between gold and brass?
  • How can you tell the difference between nitric acid and sulfuric acid in a lab, using tests?
  • How can you tell when a functional group will act as an acid or a base?
  • How can you tell which acids are strong or weak?
  • How carbon14 dating works?
  • how chemistry is related to arts?
  • how chemistry is related to fashion design?
  • how chemistry is related to history?
  • How come not all substances are water-soluble?
  • how come octane soluble in hexane but not in water.?
  • How come tippex is wet in the bottle, but dry when put on paper?
  • How come when balancing the equation NO2+NH4+O2=CO2+H2O+NH3 has a pattern with multiple answers? The patters g
  • How could Crystallography (study of crystals) help human condition (other than jewlery)?
  • How could I distinguish the four halogen ions from each other?
  • how could i draw and explain how an iridium atom looks like ??????
  • How could I extract caffeine from a kola nut?
  • How could I make different concentrations of hydrogen peroxide?
  • How could u identify a plant cell from an animal cell?
  • How could you determind experimentally whether a given substance is an electrolyte?
  • how could you separate zinc chloride from SiO2?
  • how could you seperate gold from a mixture of zinc and gold?
  • how could you test fo the products of ethyne coombustion?
  • How could Zn react with NaOH to form Soodium Zincate even though Zn is a less reactive metal than Sodium?
  • How dangerous are Copper Nitrate and Silver nitrate to the body?
  • How did argon get its name and what is its isolation?
  • How did Avagadro find the mole concept?
  • How did Louis Pasteur's experiment show that bacteria do not arise spontaneously in broth?
  • How did Louis Pasteur's experiment show that bacteria do not arise spontaneously in broth?
  • How did niels bohr actually see the emission spectrum for hydrogen?
  • How did Planck derive his constant and what is its significance (quantum mechanics)?
  • How did the old get lost in the new?


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