Chemistry Questions and Answers

  • If ur a pinoy, what does tae mean?
  • If ursolic acid has an elemental analysis of: C-78.90%, H-10.59%, and O-10.51%, compute its empirical formula.
  • If used on someone what will chloroform do? Always wondered if it works like in the movies?
  • If water is the same frequency of vegetable oil, which would have the longer wavelength?
  • If water we less "sticky" would you be cooled more or less by its evaporation?
  • If we want to determine a polarity of a solvent,which is more important, dipole moment or dielectric constant?
  • If you always smell sulfur, does that mean you have brain damage?
  • If you become a radiologists,your carrer ends after 15 years?
  • If you could construct an artificial chromodome, what elements(genes) would you introduce?
  • If you could count atoms every secound how long would it take you yo count a mole of atoms?
  • If you disolve 9.8g of sulfuric acid in 500 mL what is its molarity. if you dissolve 74g of (Ca(OH)2 in 1 L
  • If you dissolve 1 mole of NaCl(sodium chloride) (58.45g) in 1 L (1000ml) solution. What is its molarity ?
  • If you dissolve 116.90 g (=58.45x2) of NaCl disslove in 1 L solution, what is its molarity?
  • If you dissolve 98g of sulfuric acid (H2SO4) in 1 L solution what is its molarity?
  • If you dropped a human body in concentrated sulfuric acid, how long would it take ...?
  • If you freeze pepsi, would it melt as pepsi AND water, or just pepsi?
  • If you had a battery which contained the elements magnesium (Mg) and zinc (Zn)?
  • If you had a battery which contained the elements magnesium (Mg) and zinc (Zn)?
  • If you had a bunch of recyclable plastic containers?
  • If you have 100mL 0.1 M Al (OH)3 (aluminum hydroxide), how many moles of Al(OH)3 are there and how many g of A
  • If you have 500mL of 1M HCi (hydrocloric acid) how many moles of Hcl is present how mant g of HCl?
  • If you have a molarity solution (mol/L) of 1.9 M and a volume of 300 mL what are the grams moles and volume?
  • If you have NaK(SO4) wat would it look like if it was dissociated 100%?
  • If you know lots about chemistry!!?
  • If you mix 100mL of 4.0 pH acid and 100mL of 5.0 pH acid together, how do you find the new pH?
  • If you mix all the elements in the periodic table together what would you get?
  • If you mix table salt with water what is the solvent and which is the solute?
  • If you pour a liquid with a Ph of 0 on your head, will you die?
  • If you put a metal spoon on a candle flame why does it turn black?
  • If you simultaneously decrease the volume and raise the temperature of a gas what happens to the pressure?
  • If you spent $6.02*10^23 at arate of $1.00/s,how long ,in years,would the money last?
  • If you used 96.1g of sand but only produced 38.0 g of silicon what is your % yield?
  • If you weighed 37.00 grams of Al2O3, how many moles of Al2O3 did you weigh?
  • If you were on the moon and threw a balled-up piece of paper and a paper airplane, which would go further?
  • I'm bored...?
  • I'm clueless...concentration question?
  • I'm desperate for any help...batteries/websites...???
  • Im doing chemestry homework and im stuck?
  • I'm doing some chemistry practice problems for a test, any answers for these Acid Base problems?
  • Im have problems with this can someone help me?
  • I'm having a difficult time doing this problems.?
  • I'm having a really hard time with a Chemistry Problem, can anyone please help?
  • I'm having a really hard time with this problem, can anyone help me out?
  • Im having trouble balancing this equation: Ba(OH)2 + NH4Cl ---> BaCl2 (s) + NH3 (g) + H20 (l)?
  • I'm just curious, how old are the people participating in Yahoo Answers? I'm 22.?
  • I'm kind of lost, can you guys please tell me..?
  • I'm looking somethings about drilling fluid?
  • Im lost!!! percent weight of the acid...?
  • I'm really intereseted to know more about hydroxyapatite? Can someone tell me of its molecular structure?
  • I'm so scared?
  • I'm stuck on this Chemistry problem with using Hess' law?
  • Im stuck on this, does anyone know how to figure this out?
  • I'm studying for my chem test, help!?
  • I'm supposed to titrate NaOH and sodium acetate... can anyone give me an equation for that? Thanks!?
  • I'm trying to find medical glass packaging standards and how they're manufactured. Any help??
  • Image question?
  • Imagine that 0.5g of each carbonate was reacted with an excess amount of HCl. How much CO2 (g) should have bee
  • Important question in need of help!?
  • Impossible chem question, help? involves percentage by mass?
  • Impurities in water?
  • Impurities of lead?
  • In a blast furnace, how do we know if the waste gas would be carbon monoxide or carbon dioxide?
  • In a buckyball of C60 with a diameter of .71 nm, what is its mass in kg?
  • In a calcium atom in the ground state, the electrons that posses the least amount of energy are located in the
  • In a chemical equation a term such as 2 CO2 may be correctly interpreted to mean what?
  • In a chemical/refinering operations, you heard the term "intrinsically safe equipment what does the term means
  • In a given chemical reaction, when enthalpy is positive, the reaction is said to be:?
  • In a laboratory experiment, 85.3 mL of a gas are collected at 24 degrees Celcius and 733 mm Hg pressure. Find
  • In a qualitative analysis test for barium (group 4 cation)...?
  • In a sealed bottle that is half full of water, equillibrium will be attained when water molecules?
  • In a single replacement reaction, could sodium replace hydrogen?
  • In a tangent galvanometer,a current of 1A produses a deflection of 30*.current required to produse 60* is..?
  • In a the hydration mechanism of 1-methyl-1-vinylcyclopentane to 1,2 Dimethylcyclohexanol..how become 5 C-ring?
  • In a titration lab, what are some controlled variables? and how do u standardize a solution?
  • In acid-base reactions, H2O?
  • In ammonia nitrogen forms____bonds, one with each____________atom.?
  • In an acid-base equilibrium reaction the shift of equilbrium is in the direction in which the?
  • In an aldol reaction, why does the reaction of acetophenone with itself not appear to any great extent?
  • In an aqueous solution which would produce a basic solution and why? NH4ClO4, KBr, NaCl, NaHSO4, Na2SO3?
  • In an Electrolytic cell, a current of 0.250 amps is passed through a solution of a chloride of iron, producing
  • In an endothermic reaction, when temperature is lowered, does the equilibrium shift to the right or the left?
  • In chemistry i have to make up a word, put it on a license plate using symbols from the periodic table ideas?
  • In chemistry is beta the same as dextro?
  • In chemistry what are the chemical compounds of:lid, saltine wrapper, straw, envelope window, freezer bag?
  • In chemistry what are the specific chemical compounds of:lid, , straw, envelope window, freezer bag?
  • In chemistry, can chromium displace hydrogen, if so, explain. thank you.?
  • In chemistry, if I separate the two gases from water by electrolysis of water...?
  • In chemistry, what does 螖 stand for?
  • In chemistry, why do giant structures have high melting and boiling points?
  • In desperate need of a Chemistry brain. Any takers? : )?
  • In distillation why id the water fed in at the lower end of the condenser?
  • In DNA what always forms hydrogen bonds with guanine????
  • In dyes diffusion across a collodial medium, (I dont have any data about the medium) what is the relationship?
  • In Equilibrium Shifts if Q is less than K which direction does the Equilibrium shift?
  • In general, how does the percent ionic character affect the melting point?
  • In H2O what is the chemical name for the 2?
  • In infrared sampling technique, how much is the absorbance for OH, BENZOIC AND CARBOLYL FUNCTIONS?
  • In keto-enol tautomerization, why is the keto form usually favored?
  • In liquid-fuel rockets the fuels are liquid hydrazine (N2H4) and dinitrogentetroxide gas (N2O4). The two chemi
  • In liquid-liquid extraction which phase should be up and why?
  • In Madicinal Chemistry what is meant by a compound of mixed biosynthetic origin?
  • In most aqueous reactions as temperature increases, the effectiveness of collisions between reacting particles
  • In need of some Urgent Chem Help!?
  • In net ionic equations, how do you know what ionizes?
  • In one cell compartment there is SO2- and Zn2+ which goes to SO2- and Zn2+ in the other compartment?
  • In organic chemistry, the so-called "aromatic behavior" consists of:?
  • In simplest terms how can you tell if a substance is a reducing agent or an oxidizing agent?
  • In stoichiometry 640 g of C6 H10 O5 was produced, how many grams of H20 were used?
  • In stoichiometry if 1.25 g of copper is heated with an excess of sulfur, how many grams of sulfur will react?
  • In stoichiometry if 24.24 g of water react completely, how many grams of C6 H10 O5 will be produced?
  • In stoichiometry what is the percent yield in each reaction? must show work?
  • In stoichiometry what is the percent yield in each reaction? show work?
  • In stoichiometry what is the percent yield in each reaction? show work?
  • In term of elasticity, explain why it is harder to hit a home run on a slow pitch...?
  • In terms of energy and entropy, systems in nature tend to undergo changes toward?
  • In terms of LeChatelier's principal, why an increase in temperature increases the solubility of...?
  • In terms of molecular kinetic energy, why does sweat cool the human body?
  • In terms of oxidising and reducing agents, how does H2O2 differ from KMnO4 and K2Cr2O7?
  • In terms of oxidising and reducing agents, how does H2O2 differ from KMnO4 and K2Cr2O7?
  • In the case of NaOH and HC1, why are the normality and molarity the same?
  • In the competition for a proton in an acid- base reaction the winner is always the?
  • In the compound [Ni(enthylenediamine)2(H2O)2]SO4 the oxidation and coordination number of nickel are, ...?
  • In the electrolysis of an aqueous AgNO3 solution, 0.63 g of Ag is deposited after a certain period of time.?
  • In the equation [equation is given in "AD"] 6 moles of lead nitrate would create how many moles of aluminium
  • In the equation 2AlCl3 + 3Pb(NO3)2 --> 3PbCl2 + 2Al(NO3)3?
  • In the equation Fe + 2AgNO3 --> Fe(NO3)2 + 2AG?
  • In the experiment determination of iron with 1-10phenanthroline what is the function of:hydroxylamine?
  • In the experiment determination of iron with 1-10phenanthroline what is the function of:hydroxylamine?
  • In the following cell,?
  • In the following equation, identify the acid and base...?
  • In the Following reaction 19.5 moles of H2 will produce how many Moles of NH3?
  • In the following reaction, sulfur dioxide needs to have a pressure of 25atm in oder to pop the end off of the?
  • In the Ideal Gas Law what are the units for temperature?
  • In the lab, you are working with various compounds of phosphate. after undergoing a series of experimentations
  • In the manufacture of trioxonitrate v acid,ammonia is first oxidized to nitrogen iv oxide according to the eqn
  • In the Mond process for the purification of nickel, CO is passed over metallic nickel to give Ni(CO)4.?
  • In the oxidation of Luminol, what is meant by "triplet state" and "single state" ?
  • In the question above, what is the mass of sodium hydroxide in the basic solution?
  • In the reaction 2H2O-->2H2 + O2, if you start with 2 mol of water, how many moles of hydrogen gas are formed
  • In the reaction Al + HCl --> AlCl3 + H2, how many mole of HCl are required to react with 64.8 g of Al?
  • In the reaction Al + HCl --> AlCl3 + H2, how many mole of HCl are required to react with 64.8 g of Al?
  • In the reaction H2S+202--->H2S04,the law of definite proprations predicts that for every mole of H2S you will
  • In the reaction: HCl + H2O --> H3O + Cl(-) the Bronsted- Lowry base for the forward reaction is?
  • In the reversible reaction HSO3- + H2O <=> SO3-2 + H3O+,?
  • In the stratosphere CF2Cl2 breaks down, chlorine radicals are produced but not fluorine radicals, why is this?
  • In the stratosphere?
  • In the unbalanced reaction, 3Sn+8HNO3--->3Sn(NO3)2+ NO+H2O, 1.050 grams of Sn(NO3)2 was formed...?
  • In the Visible spectrum, what color of light, has the most energy, red or blue??
  • In titrating fruit juices with NaOH, how can i determine the color change if the fruit juice is not clear?
  • In what way can a micelle be used in industry or biologically?
  • In what way is hydrogen like the alkali metals?In what way is it like the halogens?
  • In what ways does calometry make use of the law of conservation of energy?
  • In which aqueous system is PbI2 least soluble and why?
  • In which material are the particles arranged in a regular geometric pattern?
  • In which of the compounds below may CIS-TRANS isomerism occur?
  • In which of the following aqueous solutions would you expect Ag2SO4 to have the highest solubility?
  • In which of the following pairs of acids are both members of the pair polyprotic?
  • In which of the reactions I have listed will lowering the temperature shift equilibrium to the left?
  • In which solvent can calcium phosphates (hydroxyapatite) dissolve?
  • In which species does sulfur have the highest oxidation number?
  • In which state of matter do the particles spread apart and fill all the space available to them?
  • Incomplete combustion?
  • Increased heavy metal concentration in drinking water?
  • Increased heavy metal concentration in drinking water?
  • Indeal gas laws.?
  • Indicate the type of reaction for the following equation...?
  • Indicate the type of reaction for the following equation...?
  • Indicate the type of reaction for the following equation?
  • Indicate the type of reaction for the following equation?
  • Indicate whether these are acids or bases?
  • Indicator Equilibrium?
  • INFO/ SCIENCE BEHIND ON BAKING S0dA AND VINEGAR REACTION?
  • Initial State p1/p2=t1/t2??
  • Insulator or Conductor?
  • Intermolecualr forces present in phosphorus?
  • Intermolecular force...?
  • INTERMOLECULAR FORCES [quick CHEMISTRY question]?
  • Intermolecular Forces Helppppp [physical chemistry]?
  • Intermolecular forces in PF5?
  • Intermolecular forces of mineral oil?
  • Interpret 2kclo3-2kcl+3o2?
  • Intro to chem?
  • Introductory electronic and molecular geometry?
  • Invention of the poop-hardening spray?
  • Investigatory projects for chemistry class 12?
  • Invisible Fire?
  • Involving nucleus separating! please help!?
  • Iodination of aniline. to obtain good results freshly distilled aniline shud b used. Why?
  • Iodine questions - really desperate!?
  • Ion and polar bond questions?
  • Ion concentration given reduction potentials in electrochemical cell?
  • Ionic and Covalent Bonds?
  • Ionic bond is the strongest bond. Diamond has covalent bonds, yet diamond is the hardest substance. How?
  • Ionic bonding how do you name them?
  • Ionic bonding?
  • Ionic compound question?
  • Ionic compound question?!?
  • Ionic compounds dissolving?
  • Ionic lattice?
  • Ionic reactions and net reactions of cobalt (II) nitrate + ammonium hydroxide?


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