# 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.?