Chemistry Questions and Answers

  • Starting with 142 mL of a 0.31 M solution of phenylalanine, shown above at pH = 7.0, how many mL of a 0.400 M?
  • Starting with 2-methylpropane outline a synthesis of each of the following?
  • Starting with malonic ester or ethylacetoacetate how would you prepare?
  • State Le Chatalier's principle?
  • State of Matter is KILLA: HELP!!?
  • State of Matter Problems once again: HELP Im going crazy!!?
  • State the assumptions of the kinetic theory as applied to an inert gas.?
  • State the drying agent for each of the following compounds.1.NH3,HCL,SO2?
  • State which of the following orbitals cannot exist: 1p,2d,3p,4d,4f,4g..according to quantum theory,,,?
  • States of matter question?
  • Still have no clue how to do thise?
  • Stoichimetry problems may involve all of the following except?
  • Stoichiometric coefficients?
  • Stoichiometric question,,?
  • Stoichiometry chem question?
  • Stoichiometry help!?
  • Stoichiometry problem... Tricky?
  • Stoichiometry question?
  • Stoichiometry(correct and quick answer quick rate)?
  • Stoichiometry: grams to moles to mole ratio to grams?
  • Stoichiometry?
  • Stoichiometry?
  • Stoichiometry?
  • Stoichiometry???
  • STP problem.?
  • STP problem?
  • Strong acids and bases ________________ ionize in a solvent.?
  • Strong/weak acids?
  • Strongest and weakest chemical bonds?
  • Strongest conjugate base?
  • Structural formula. I don't understand. Can someone explain?
  • Structural formulas?
  • Structural isomers are compounds that have?
  • Structure of amino acid and polypeptide...?
  • Structure of compounds?
  • Structure of glucose and cellulose...?
  • Structure of N-phenylanthranilic acid? urgent!!?
  • Stuck on a crossword, 'difficult to take in the other direction'?
  • Study of electron microscope??
  • Subatomic particles in a isotope of Carbon that has a mass number of 13?
  • Subatomic particles.?
  • Sublimation?
  • Subshell filling order ..?
  • Substance A has a melting point of -10 degree Celsius and a boiling point of 57 degrees celsius..?
  • Substance A is a molecular compound that dissolves in gasoline but not in water. The molecules of A are likely
  • Substance A is a molecular compound that dissolves in gasoline but not in water. The molecules of A are very?
  • Substance with density < 1.0 g/ml.?
  • Substances that are likely to be soluble in water?
  • Substitute for sodium nitrite in azoic colour preparation?
  • Sue mixed 50 ml of water @ 20degrees w/ 50ml of water @ 75degrees. The final temperature was 47.5degrees...
  • Sugar dissloves in water even withour stir? name the property indicated by the observations?
  • Sugar in water is an example of which solute-solvent combination?
  • Sugar is soluble in water because sugar molecules are?
  • Suggest few sites where i could find chemistry projects for class XII (cbse)?
  • Suggest with a reason the value for the OPO bond angle in the pohosphate ion (3-)?
  • Sulfur questions?
  • Sulphonation / sulphation?
  • Sulphur + iron = to ??
  • Sulphuric acid is a stronger acid than hydrochloric acid, so does it deprotonate it or what?
  • Sum of PH& pOH is?
  • Super hard chemistry question. PLEASE ASSIST THE NEEDY?
  • Suppliers of cellulose acetate?
  • Suppose you want to heat 40 kg of water by 20c how many joules?
  • Suppose you want to heat 40 kg of water by 20c how many joules?
  • Surface Finishing of Copper Substrate (Oxide Removal)?
  • Surface tension ?
  • Suspension?
  • Swimming pool disinfection?
  • Symbol equation for Butan-1-ol + Acetone + Jones reagent?
  • Symptoms of hangover after drinking alcohol?
  • Synthesis reaction help?
  • T/F Displacement/Single Replacement involves the replacement of one element by another in a compound?
  • T/F Chemistry questions?
  • Tabulated values of chemical thermodynamic properties seem inconsistent. What am I misunderstanding?
  • Take 5 chemical based compounds used in your homes. Identify these as true solutions, suspensions or colloids?
  • Taking air sample of bedroom?
  • Taking mushrooms DOES NOT leave you with lasting mental effects?
  • Tannic acid and tea?
  • Tap water?
  • Taurine? whats up with that stuff? do u know what it is and/or what it does?
  • Tell about graphalogy i can find material or related data?
  • Tell me about the element tantalum.....Please help?
  • Tell me how can i learn Chemical Equations from begining to Advance?
  • Tell me where I can find a substance/material with the following characteristics, if exists?
  • Tell me why this is wrong PLEASE?
  • Tell the general structure of the atom. explain how the properties of the 1st 20 elements of periodic table?
  • Tell the substance oxidized, reduced, oxidizing agent and reducing agent in the folloeing with reason?
  • Temperature change in system?
  • Temperature conversions?
  • Temperature of water?
  • Temperature Scale Question?
  • Temperture and pressure of a tank of oxygen?
  • TEST omg!! help!!?
  • Test to distinguish between..?
  • TEST YOUR CHEMISTRY KNOWLEDGE! What is...?
  • Test your skills?
  • Testing manufacturers claims on Alka-Seltzer tablets?
  • Texas labor laws?
  • THC molecule is non-polar...how would you break it down in the lab?
  • The molar mass of calcium oxalate, CaC2O4, is 128 g/mole.?
  • The [OH-] in pure water is _____?
  • The [OH-] of a fruit juice is 3.2 x 10^-11 M. Whats the pH?
  • The __________________identifies the element.?
  • The ability to do work or cause change is...?
  • The active ingredients in chocolate is theobromine; a sample was analyzed and determined to be composed of:?
  • The addition of Cl2 to trans-2-butene gives?
  • The addition of Hcl to 1-hexene gives you what product? Is it racemic or nonracemic?
  • The addition of HCL to 1-hexene, is it racemic?
  • The addition of water to ethylene has become a cheaper method than fermentation for making ____.?
  • The aluminium sulphate hydrate[Al2(SO4)3.xH2O] contains 8.20% of aluminium by mass.Calculate x?
  • The amount of energy available from a galvanic cell with electrodes made of metals A and B depends on?
  • The atomic number of an atom is equal to?
  • The attraction between cations like Sr +2 and Anions like F -1 is classifie as____________.?
  • The average kinetic energy of a sample of gas molecules will increase under what conditions?
  • The average kinetic energy of a sample of gas molecules will increase under which of the following conditions?
  • The balanced equation for calcium carbonate yeilds calcium oxide + carbon dioxide?
  • The balanced equation for calcium carbonate yeilds calcium oxide + water?
  • The balanced equation for magnesium hydroxide + hydrochloric acid yields magnesium chloride + water?
  • The balanced reaction between HCl and NaOH?
  • The basic geometry for molecules in the set below which possesses the smallest bond angles is?
  • The bond length is minimum in case of?
  • The bond order of Be2 in the molecular orbit theory would be 1.) 0 2.) 1 3.) 1.5 4.) 2.0?
  • The central atom in IF2- is surrounded by?
  • The chemical action N2(g) + 3H2(g)<--> 2 NH3(g)?
  • The chemical compounds found in all amino acids are? Please list them I was told by a source that there is 4?
  • The chemical formula of water is H2O...?
  • The Chemistry of Fireworks.?
  • The chloride ion concentration in a magnesium chloride solution is 2.0 M. The solution concentration is?
  • The combination of 2 methyl radicals to form ethane has:?
  • The combustion of methane (in natural gas) forms carbon dioxide and water:?
  • The combustion of propane is best described as an?
  • The combustion of propane is best described as an?
  • The common indicator _____ is very useful in studying neutralizations that involve strong acids and weak bases
  • The concentration of Ag+ions in a solution of Ag^2CO^3 at equilibrium is 2.53*10^-4 M at 25 degreescelciu?
  • The concentration of Fe^2+ ions in a solution of FeCO^3 at equilibrium is?
  • The concentration of H^3O ions in a solution of 3.8 x 10^-9 M?
  • The concentrations of solutes (like glucose) inside and outside the cell are equal when the solution is?
  • The decomposition of zinc carbonate, ZnCO3(s), into zinc oxide, ZnO(s), and CO2(g) at constant pressure req...
  • The density of C2H5OH is .789 g/ml. How many g. of C2H5OH should be mixed w/ 225 ml of H2O to make 4.5% (v/v)?
  • The density of mercury is 13.6 g/ml. How many liters does 150 grams of mercury occupy?
  • The diameter of a rubidium atom is 4.95 amu. Considering two different arrangements of atoms, the first be?
  • The difference between Kp and Kc?
  • The direct relationship between temperature and volume is known as?
  • The effect of different catalysts?
  • The effect of different catalysts?
  • The effect of surface area on the rate of reaction between magnesium (ribbon) and hydrochloric acid?
  • The electrolysis of a water solution of sodium chloride produces?
  • The electronegative difference between hydrogen and fluorine is?
  • The element crystalline is brittle and has a high melting point, why does it have these properties?
  • The element iodine is a halogen?
  • The elements that dont ordinarily form compounds are?
  • The elements?
  • The energy in wind used to generate electricity is?
  • The energy produced by a nuclear reaction comes from..?
  • The equilibrium constant Kc..?
  • The experiment was.?
  • The final temperature of the ethanol...?
  • The fire triangle ...without oxygen? Using Chlorine...?
  • The first 6 ionization energies for the elements X and Y are shown in the table below. Identify possible.?
  • The first subatomic particle to be discovered and described was the:?
  • The first...?
  • The following are alpha emitters. what are the reactions produced in each case?
  • The following strong, weak, or non-electrolytes?
  • The formula weight of C3H8O2 is:?
  • The general name of Fe2o3 is -------------?
  • The half life of Randon -226 is 1600 years.?
  • The halogens fluorine (F2) AND BROMINE (Br2) react together as gases to give the gas bromine pentafluoride, Br
  • The halogens fluorine (F2) AND BROMINE (Br2)?
  • The H-C-H bond angles in propane are closest to 1.) 90 2.)109.5 3.) 120 4.) 180?
  • The hydrogen necessary in this chain comes from the breaking apart of ___ from FAD.?
  • The Ideal Gas Law is represented by?
  • The ideal gas law is: T=PV/nR, or PV=nRT, or P=nRT/V, or V=nRT/P?
  • The ideal gas law states the relationship between...?
  • The identity (enthalpy of solution) of unknown salt.?
  • The importance of chemistry to society?
  • The individual particles in a metal are held together as a result of?
  • The inital volume of a gas cylinderis 750.0mL, if the pressure of a gas inside the cylinder changes?
  • The iron in 4Fe(s)+3O2(g)-->2FeO3(s) is ? oxidized or reduced, and gaining or losing electrons?
  • The K_eq of a reaction is 4x x 10^-7. At equilibrium, the ____?
  • The Keq of a reaction is 4 x 10^-7. At equilibrium, the_____?
  • The kinetic energy of a gas sample is directly proportional to the Kelvin temperature of the gas..?
  • The Kinetic Molecular Theory assumes which of the following is true about an ideal gas?
  • The kinetic-molecular theory considers collisions between gas particles to be....?
  • The Kinetics of Radioactive Decay?
  • The Ksp of CuS,Ag2S and HgS are 10-31,10-44 and 1o-54 respectively. The solubility of these sulphides in wate
  • The labels have fallen off two bottles, one containing pyrrole and the other containing pyridine?
  • The larger acid dissociation constant,Ka, of acetylene as compared to ethylene is primarily attributed to?
  • The Law of DuLong and Petit states...?
  • The least powerful type of nuclear radition?
  • The liter is a measure of?
  • The magnetic property and the shape of [Ni(NH3)6]2+ complex ion are?
  • The mass of oxygen that would react with 50g of magnesium?
  • The molarity of a saturated solution...?
  • The molecular equation??
  • The more concentrated an acid is, the more it reacts with metals?
  • The most common element by mass found in rocks near earth's surface is a=silicon b=iron c=oxyen d=aluminum
  • The most existing element in the universes is?
  • The most logical formula for mercuric oxide is ?
  • The movement of water molecule?
  • The natural partial breakdown of water into ions is called _______?


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