Chemistry Questions and Answers
Ok...two more bio Q's I need help on.?
Ok..all you chemists out there, how on EARTH do you remember all these equations and how to use them properly?
OMG....whueva answers this is a chemistry genious! no joke :)?
On a molecular level, how does decreasing the temperature affect the rate of a reaction?
On a molecular level, increasing the concentration of a substrate substance slows down the rate of reaction?
on a periodic table what does gd for gadolinium stand for?
On an expanded periodic table, what energy level subshell is represented by the elements that are expanded?
On eBay I saw a 1000 ml. distilling receiver in the lab glass cat. How is it used.?
On the Periodic Table the letters "NA" stand for what element?
On tins why do they put?
One chemistry question needs to be answered. Please help me?
one kilicalorie is definied as ....?
One last question?
One material has greater Young's modulus than another. What does this tell you?
One more chem question!?
One more chemistry question!?
One More Stoichiometry Question.?
One of the emission lines of the hydrogen atom has a wavelength of 93.0 nm.?
one of the most caustic chemicals in homes is drain cleaner containing pellets of sodium hydroxide(NaOH)...
One of the steps in production of sodium carbonate (washing soda) is the reaction to produce..HELP!?
One question I need help on!!?
Orbitals used for pi bond and sigma bond?
order or increasing melting points:?
Organic & Biochemistry advice?
Organic Chem - balanced redox equations...?
Organic Chem question!?
organic chem question?
Organic Chemistry (markovnikov's rule) Help!!?
Organic Chemistry help please!?
organic chemistry help plzzz..thnx..^__^?
Organic Chemistry HELP!?
Organic Chemistry HELP!?
Organic Chemistry HELPPP ME?
Organic chemistry problem?
Organic Chemistry Q?
Organic Chemistry question?
Organic Chemistry Questions...need HELP?
Organic Chemistry questions?
Organic Chemistry: Compare Benzene and the Planar Cyclooctatetraene?
organic molecules, what atoms do they contain?
Original name for nitric acid?
ortho-nitrobenzoic acid or para-nitrobenzoic acid which one is more polar?
Osmotic Pressure Problem?
osmotic pressure question?
Other than Uranium and Plutonium, are the Lathanides and Actinides used for anything?
Other than water what other materials expand when cold?
Outline a procedure for determining what fraction of total iron is dissolved Fe2+, Fe3+, and particulate Fe.?
Outline for Alternative fuel Hydrogen?
oxidant and its corresponding reducing agent is correct?
Oxidation #s for H3COOH?
Oxidation number of platinum?
Oxidation Numbers ?
oxidation/reduction with the elemental zinc?
Oxidation-reduction reactions involve the transfer between the reacting substances of?
oxides in oxygen, related to the group? why?
Oxycodone? Where can I find a 3D model of it?
Ozone (O3) and oxygen (O2) are.....?
Ozonolysis and etc question.?
ozonolysis followed by H2O2 or hydrogen peroxide...?
paint preparation+mordant solution?
Palladium working with an inner Platinum-Cobalt boundry to suck Hydrogen from solutions like water?
Parameter is necessary?
Parameters to select density Analysers?
partial gas problem?
partial negative charge -- which atoms in the following bonds:?
Partial pressure problem?
partial pressure question?
partial pressure/ equilibrium help pleaseeee!!?
Particle of relatively negligable mass?
Pb(NO3)2 + AgNo3 ----> Pb(NO3)2 + AgNO3?
Pb(NO3)2(aq) + Nacl(aq)?
People, please make me cry...?
pepsin and catalase?
Percent ionization help.?
percent solution, molality and osmolatity. Urgent help please?
Percent yeild help much needed!!?
Percentage yield question:?
periodic table help . consider isotopes of Cl-35, Cl-37?
Periodic Table Help, Please?
Periodic Table of Elements chart? URGENT!?
periodic table of elements..graphing the atomic number and atomic mass?
periodic table of elements?
Periodic table of elements?
Periodic Table of Elements?
periodic table of the elements?
Periodic table question..?
Petroleum is a non- renewable resource that is very important to humans.?
Ph i dont get?
PH and Ka need help?
pH and percent dissociation problem?
pH and pOH problem? Some Help Please...Checking-Wise?
PH Help please!?
pH of 10^-8 M HCl?
pH of 2x10^-8 M KOH?
pH of a base buffer?
pH of a buffer solution?
pH of a buffer?
pH of a Buffer?
ph of a solution - 10 points first correct answer!?
ph of a solution!! 10 points first correct answer!?
pH of a solution?
pH of a substance?
pH of an aqueous solution?
ph of non aqueous solutions?
PH of of a buffer solution? What am I doing wrong?
pH of the salt KNO2?
pH of titration (weak acid + strong base)?
pH of water!?
PH problems, hope someone would help?
PH question please help!!?
pH question. Please help.?
pH/acid-base equilibria problem?
Phenolphthalein indicator measures which solution in acid base titration?
phosphate rocks -- ENVIRONMENTAL CHEMISTRY?
Photons + Electrons?
Pick any city in the world and tell me about the history of the salt trade in this city.?
Place in order of increasing speed for the following gases?
planting trees would fetch more water----- is it true? explain?
Plastic steering wheel is decomposing - why?
Please answer and explain at least one of these chemistry problems?!?!?!?
Please answer as many questions as you can on Biology?
Please answer this quicky question...?
Please Balance this Equation?
Please calculate the pH of each of the following aqueous solutions. Report all pH's to two decimal places.
Please calculate the pH of each of the following aqueous solutions. Report all pH's to two decimal places. 2
please can you explain what a substitution reaction is?
please explain about autoanalyseres tools in chemistry?
Please explain Chemistry of Ag4O4 (Tetrasilver Tetraoxide)?
Please explain how radio activity was discovered?
Please explain the differences?
PLEASE HELP ASAP! what is the temperature of hydrogen peroxide at room temperature?
Please help in chemisry, ASAP, will be your best friend :-)?
please help me !!!aluminum??
Please help me balance this chemical equation: Ag + HNO (sub 3) 'arrow' AgNO (sub 3) + NO + H (sub 2) O
Please Help Me- Chem Questions?
Please help me classify these...?
Please help me design a regiospecific synthesis of 2-nitroaniline starting from benzene?
Please help me learn how to balance chemical equations in word form( and I don't want to cheat!)?
Please help me on how to work this problem, im not good with this sort of thing?
please help me out with this?
please help me to verify the following informaiton?
Please help me understand the chemistry in Lead Acid Batteries?
please help me understand! mole to mole ratios?
please help me with a chemistry problem =]?
PLEASE help me with chem =[?
please help me with chem question?
please help me with chem?
please help me with chemistry question?
Please help me with chemistry questions..basic?
Please Help Me With Chemistry!!?
please help me with my chemistry lab!!?
please help me with some lab questions!!!?