Chemistry Questions and Answers

  • Balancing redox equation?
  • Balancing redox equations and identify the reducing agent?
  • Balancing Redox Equations?
  • Balancing redox reaction?
  • Balancing redox reactions?
  • Balancing Redox Reactions?
  • Balancing Redox Reactions?
  • Balancing the equation?
  • Baltimore Gas and Electric hike?
  • Bar graph??
  • Barometers?
  • Based on conclusions from application of the VSEPR theory, which one of the following species in linear ?
  • Based on its position on the periodic table, predict and explain how many 4d electrons are found in Z=45.?
  • Based on the Lewis structure, the number of nonbonding domains in the CO2 molecule is ?
  • Based on this equation?
  • Bases and Acids?
  • Basic , Neutral , or Acidic?
  • Basic and applied research.?
  • Basic and applied research.?
  • Basic chemistry conversions I need help with!!?
  • BAsic Chemistry Help plzzzzzz?
  • Basic chemistry question?
  • Basic chemistry, about concentration?
  • Basic concentration question, in chemistry?
  • Basic Electrochem Question?
  • Basic Titration question?
  • Bauxite ore contains aluminum oxide.....?
  • Be, C, Ne, Al, Si, P, Cl, Ca, Br - Name ANY 2 that would form covalent bonds?
  • Beatles ch2?
  • Before cooking vegetables, fruits, can Potasium Permanganate solution be used to remove pesticides & bacteria
  • Behaviour of aniline?
  • Benzene has how many pie molecular orbitals? (bonding and antibonding)?
  • Benzene is a organic solvent with the formula, C6H6. It boils at 80.1DegreeC and melts at 5.5 DegreeC.?
  • Benzene Question!! HELP NEEDED!!?
  • Benzocaine powder?
  • Bes chemistry books?
  • Besides Epsom salt, what is another hydrated crystal that can be easily obtained?
  • Besides salt, what lowers the temperature of water?
  • BEST AND EASIEST WAY TO MEMRISE THE PERIODIC TABLE,thank u?
  • BEST ANSWER GOES TO 1ST CORRECT thanks for your help... What are the names of compounds formed when marble?
  • Best answer to the first one answering it correct .KINDLY TELL THE IONS FORMED BY THE FOLLOWING ELEMENTS?
  • Best chemistry question ever!!?
  • Beta radiation??
  • Between antifreeze and distilled water, which is the solvent and which is the solute?
  • Binary ionic compounds that form each of these..?
  • Bio based Polymers And Composites!?
  • Bioactivity of Afromomnm?
  • Biochem questions?
  • Biochem questions?
  • Biodegradable and non biodegradable material?
  • Biodiesel/transesterification Explanation?
  • Biology enzyme question lab?
  • BioMEMs?
  • Blue crystals on pennies?
  • BLue litmus paper?
  • Blue vitriol is?
  • Body Chemistry --what could be more fascinating?!?
  • Boiling Point & Vapour Pressure?
  • Boiling and evaporation are both ways a liquid can? please helpp!?
  • Boiling and freezing point?
  • Boiling point of a solution?
  • Boiling point problem HELP!?
  • Boiling point question?
  • Boiling point?
  • Boiling point?
  • Bond Angles.?
  • Bond energies question!?
  • Bonding anyone?
  • Bonding in the water molecule can be explained by the valence bond theory in terms of an overlap between?
  • Bonding... immiscible or miscible?
  • Bonds between particles in ionic bonding?
  • Boron (atomic #5) has two naturally occuring isotopes.?
  • Boron atom in BF3 is sp2 hybridized. But while the formation of BF4炉 ion by the formation of co-ordinate.
  • Both LiOH&Mg(OH) 2are ---------------bases?
  • Boyle's Law is an inverse relationship between ?
  • Boyle's Law is represented by the equation P1V1 = P2V2 and shows a/an ?
  • Boyle's Law...can it be expressed as V=1/P ?
  • Br2(l) + H2O(l) <--> HOBr(aq) + HBr (aq) which way does the equabrium tilt towards more?
  • Brackets denoting concentration...?
  • Breaking CO2 / O2 binding?
  • Brief overview of converting between partial pressures and molarities for doing equilibrium problems?
  • Briefly explain the interconversions of alcohols,aldehydes,ketones and carboxylic acids.?
  • Briefly list the steps in the process of protein production from DNA to final protein?
  • Bromine is a typical nonmetal. A bromide ion is ______ a bromide ion.?
  • Bromine is denser than air,still rises in air. Why?
  • Bronsted-Lowry acid and base?
  • Bronsted-Lowry base...?
  • Bronsted-lowry help?
  • Buffer concentration pH questions?
  • Buffer Question.?
  • Buffer question?
  • Buffer solution calculation?
  • Buffer solutions?
  • Burning Lead to produce lead oxide?
  • Burning of candle is an example of both a physical and chemical change?
  • Bust this Myth - How does oil dissolve in water when curing the "evil eye"?
  • Butan-1-ol?
  • Butane (c4h8) is used as a fuel in portable devices such as lighters and campstoves. Write a blanced ...?
  • By adding H+,H2O and e- as necessary, write balanced half equations for the following?
  • By heating sodium eathanoate with soda lime, gas formed is?
  • By what method can a gas be sterilised?
  • By what process are polymers made?
  • By-product of this combustion reaction?
  • C14 has T1/2 =6000 its Av.life is?
  • C4H10 what is it and exampele of it?
  • Caculate Ka value?
  • Caculate Ph?
  • Caculate PH?
  • Caffeine extraction?
  • Calc the standard cell potential, and the cell potential when [H+]=[HSO4-]=4.5M?
  • Calcite is harder than quartz? TRUE or FALSE thanks!?
  • Calcium carbide (CaC2) reacts with water to produce calcium hydroxide and acetylene (C2H2). What...?
  • Calcium Chloride- help? x?
  • Calcium has an oxidation number of 2+, and hydrogen has an oxidation number of ____________?
  • Calcium oxide (lime) with water?
  • Calcualte the pH and % dissociation of a 5.4 x 10^-2 mol/L aqueous solution of methylamine, CH3NH2?
  • Calculate % Cr in unknown sample ?
  • Calculate [H+] and [OH -] in each solution.?
  • Calculate [H+], [OH-], and the pH of the solution.?
  • Calculate at what temperature the following will be spontaneous?
  • Calculate Kb for sodium acetate with pH of 7.53?
  • Calculate mass?
  • Calculate molar mass of butane gas C4H10 if 3.69g occupies 1.53L at 20 degrees Celcius and 1 atm?
  • Calculate molarity of solution?
  • Calculate naturally occurring Bromine's RAM, from isotopes?
  • Calculate new mole% after adding water?
  • Calculate pH and OH?
  • Calculate pH and pOH of 1.0 x 10-4 M solution of benzoic acid?
  • Calculate soln. pH if 100mL 0.10M Na2S is mixed with 200mL 0.050M HCL. (HINT: Consider Kb for HS-[1.1x10-7])?
  • Calculate the [H3O+] and [OH-] if there is 3.0 x 10^-2 M solution of KOH?
  • Calculate the [H3O+] and [OH-] if there is 3.0 x 10^-2 M solution of KOH?
  • Calculate the change in internal energy of the system and determine whether the process is exothermic or en...
  • Calculate the change in pH that occurs?
  • Calculate the concentration of each ion in solution and the molar solubility of the compound.?
  • Calculate the concentration of each ion...?
  • Calculate the concentration of hydrochloric acid when reacted with 1.3grams of sodium cabornate?
  • Calculate the concentrations of both [H+] and [OH-] ions @ 25 degrees Celcius in...?
  • Calculate the density (in g/L) of Kr at 308 K and 527 mm Hg. (R = 0.08206 L路atm/mol路K)?
  • Calculate the density from its structure, edge length and atomic weight?
  • Calculate the energy necessary to heat 5 grams of water from 27 degrees to 50 degrees C.?
  • Calculate the energy required to produce 7 mol Cl2O7 on the basis of the following balanced equations?
  • Calculate the final temperature of 245 mL of water initially at 32 degrees C upon absorption of 17 KJ of heat?
  • Calculate the initial molar concentration in moles/L of an aqueous solution of HF(aq)?
  • Calculate the kp for decomposition of h2s base on following?
  • Calculate the kp question?
  • Calculate the mass of 1L of hydrochloric acid at STP.?
  • Calculate the mass of the white solid CaCO3 that forms when 25.0 mL of 0.100 M Ca(NO3)2 solution is mixed with
  • Calculate the mass...?
  • Calculate the molar aolubility for Ag2SO4 with ksp 1.5x10^-5?
  • Calculate the molarity in a titration problem...?
  • Calculate the molarity of 6 grams of CH3COOH in 250 mL of solution?
  • Calculate the molarity, molality & mole fraction of a 35.5% salt solution?
  • Calculate the new volume of a 200.0 L balloon when the pressure is suddenly tripled.?
  • Calculate the number of atoms in 4g of magnesium?
  • Calculate the number of atoms in 4g of magnesium?
  • Calculate the number of chlorine and calcium ions in 222 grams of anhydrous calcium chloride.?
  • Calculate the number of grams needed to make a 200 mL of a .5 M solution of Cu(NO3)2?
  • Calculate the number of liters occupied at STP?
  • Calculate the pH after the following volumes of HCl have been added.?
  • Calculate the pH if (H+)= 2.4 * 10-6 M(10 to the negative 6 M). Calculate the pOH of solution.?
  • Calculate the pH in an acid-base titration when 10mL of 1M NaOH is added to 50mL of 1M HNO2? Ka=6*10^-4?
  • Calculate the pH of 0.200M of Na2s solution ?
  • Calculate the pH of a 0.025 M solution of HNO3.?
  • Calculate the pH of a 0.0332 M solution of the strong base RbOH.?
  • Calculate the pH of a 1.5 M solution of benzoic acid.?
  • Calculate the pH of a buffer solution that contains 0.25M (C6H5CO2H) and 0.15M (C6H5COONa).?
  • Calculate the pH of a colution that is 0.41M in HOCL and 0.50M in NaOCL. Ka(HOCL)=3.2X10^-8?
  • Calculate the pH of a saturated solution of cadmium hydroxidem Cd(OH)2.?
  • Calculate the ph of a solution from two given molar values?
  • Calculate the pH of a solution that is 0.50M HOCl and o.75 M NaOCl.?
  • Calculate the pH of each of the following buffered solutions. 0.40 M C2H5NH2 / 0.20 M C2H5NH3Cl?
  • Calculate the pH of each of the following strong acid or strong base solutions at 298 K. 2.9 10-2 M HCl?
  • Calculate the pH of each of the following strong acid or strong base solutions at 298 K. For 2.9 10-2 M HCl?
  • Calculate the pH of each of the following strong acid or strong base solutions at 298 K.?
  • Calculate the pH of solutions?
  • Calculate the pOH and pH at 298 K of solutions having the following ion concentrations. [OH -] = 1.7 10-2 M?
  • Calculate the pOH and pH at 298 K of solutions having the following ion concentrations.?
  • Calculate the pOH of a buffer composed of 0.065M NH3 and 0.235M NH4+ if pKa=9.26?
  • Calculate the solubility of Ca(OH)2 in a 2.540M NaOH solution at 37掳C?
  • Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base propertie
  • Calculate the volume of 0.150 mol /L Ba(OH)2 necessary to neutralise 433 mL of 0.175 mol/L HCl.?
  • Calculate the volume of dry H which would produce by 1 mol MG at Room Templ. and 1 ATM. pressure?
  • Calculate time needed for seven-eighths sample of cesium- 138 to decay given that its half- life is 32.2 mins
  • Calculate volume of Carbon Dioxide?
  • Calculate volume?
  • Calculate 螖E for the system in .?
  • Calculated how many grams of methane (CH4)?
  • Calculating # of Moles from...?
  • Calculating [H3O+] from titration values?
  • Calculating concentration of NADH and pyruvate before the start of an assay?
  • Calculating energy change?
  • Calculating energy?
  • Calculating hydrogen ion concentration after a pH change in a buffer solution.?
  • Calculating Keq or equilibrium concentrations?
  • Calculating mass & other chem questions?
  • Calculating molality?
  • Calculating molar mass...?
  • Calculating mole fraction at equilibrium?
  • Calculating OH?
  • Calculating pH or an acid solution after the addition of a base.?


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