Chemistry Questions and Answers
Describe the reaction rate for the following equation in three different ways: H2(g) + Cl2 (g) ----> 2HCl?
Describe the relationship between precipitation and dissolution.?
Describe three ways in which the number of protons and the number of neutrons in a nucleus affect stability.?
Describe two methods which can optimize the yield of product in an esterification reaction in the presence of?
Describe what happen when water is added to each element.?
Describe what happens to a saturated solution of sugar in water if temperature suddenly drops 10 degrees C?
Describe what would you see if you added a piece of zinc metal into 6M HCl acid?
Describe why you need to identify carefully the substances in a can of baby formula b4 you feed it to ur baby.
Desired properties of stones?
Desperate Chemistry Help!?
Desperate need of chemistry HELP!?
Desperate need of Chemistry Help?
Desription of a Halogen?
Deteremine which band of electromagnetic spectrum has each of the following:?
Determination of ionization constant question~~?
Determination of iron with 1,10-phenanthroline?
Determination of Sucrose after procedure is done? color representaion? science olympiad users included!help!?
Determine a chemical, or chemical process that is harmful or disgusting in the making of this food?
Determine Absorbance and transmittance?
Determine if the formulas are correctly written...?
Determine Ka for the acid HA?
Determine the activation energy for the reaction. Please help... exam tomorrow!?
Determine the activation energy for this reaction and Calculate the value of k at 25 degrees C.?
Determine the Celsius temperature of 1.75 moles of gas contained in a 1.00 L vessel at a pressure of 158 kPa.?
Determine the concentration of magnesium ions, [Mg 2+], when solid MgF 2 (K sp = 4.780x10^-9) is added to a 8.
Determine the concentration?
Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.?
Determine the final temperature of the system:?
Determine the hydronium concentration when pH=5.3?
Determine the hydronium ion concentration(M) of an acid solution with a pH of 6?
Determine the incorrect statement:?
Determine the mass of a CO2 gas that has a volume of 7.0 L at a pressure of 1.11atm and a temperature of 31.0?
Determine the molar ratio of sodium benzoate (NaC 7H 5O 2) to benzoic acid (HC 7H 5O 2, pK a = 4.092) required
Determine the mole ratio for the following reaction.oxygen gas and carbon react to form carbon monoxide?
Determine the number of moles of HCl in 50mL of 1.0M HCl?
Determine the pH of a 0.01 M KOH solution?
Determine the pH of a 0.01 M KOH solution?
Determine the ph of a solution prepared by mixing 50ml of 0.125m of KOH with 50ml of 0.125 m of HCL?
Determine the rate law and Calculate the value of the rate constant?
Determine the specific heat capacity of gaseous ammonia?
Determine the temperature (in 掳C) above which the reaction is nonspontaneous. NH3 (g) + HCL (g) --> NH4Cl (s)
Determine what shell and sub-shell each of the following electrons..help please.?
Determine whether the following equation is alnced. If it isn't balance it.?
Determing Concentration and Type of Acid?
Determing Half life age with molar ratio?
Determing Solubility from ksp?
Determining a Ka value for HC2H3O2 in a lab.?
Determining a Ka value for weak acid: HC2H3O2 in a lab?
Determining melting point with heat of fusion and entropy?
Determining percent yield...?
Determining the ph and % ionization?
Diamond consists of this metal.?
Dibromocyclobutane in NMR?
Dichloromethane, polar or non polar?
Did I balance this equation correctly?
Did kerosene contain lead?
Did Marie Curie, the discoverer of radium know how to speak English?
Did my ice sublime?
Did this lab with HCl and metals. HCl reacted with zinc, magnesium, iron, but not with copper. The question is
Differance between mass number , atomic number and atomic mass?
Difference between covalent network and just covalent?
Difference between normal ionic and redox ionic equation?
Different of property between an Ideal gas and a Real gas?
Differentiate between a unimolecular and a bimolecular reaction.?
Differentiate between vapour and fume?
Diffusion of an ion across a cell membrane is...?
Dilute 10.0 mL of solution 3 (Look Below) with 40.0 mL of distilled water. The measured pH is 5.00?
Dilution Factor Question?
Dilution question please.?
Discovery and use of metals through history. i need to make a timeline.. please help...?
Discuss the medical application of acidosis.?
Discuss what would happen is a poatao strip was boiled for 10 mins and then placed in a salt solution.?
Disolving egg dye: chemical or physical?
Dissociation noob question?
Dissociation of acids question...?
Dissolving salt in water is usually endothermic?
Distinguish between a metal and a metal containing compound?
Distinguish pental and 1-pentanone by simple chemical test ?
Distinguishing a solution of ammonia from water?
Do all metals react w/ acids to form salts.EXPLAIN briefly!?
Do all proteins repsond to biuret test?
Do all the molecules in a 1-mol sample of CH4(g) have the same energy at 273 K?
Do anobody tell me which metal is stored in water, just like sodium in kerosene???
Do any of u people know What makes a semi-cunducter metal semicunduct- what makes it? thks.?
Do apples contain papain??
Do bases release hydrogen gas when added to water?
Do burning leaves or spices produce CO2?
Do chemicals change you?
Do coefficiants+subscript effect electroneg. #?
Do hydronium ions conduct electricity?
Do I use sig figs in a grams to Mole conversion?
Do isotopes of an element have the same chemical and physical properties?
Do paints, yarns, carpet, etc contain only polyacrylonitrile (homopolymer) or its copolymers?
Do rocks have malleability?
Do salt crystals grow faster in cold, warm, or hot places?
Do someone has any idea what is the name for this chemical , NaHSO4 ?
Do the solubilities of all ionic solids increase as the temperature increases? why?
Do the terms endothermic and exothermic apply to light energy?
Do they really add something to pure ethanol in Chem Labs that makes you go blind?
Do they still use mercury in thermometers?[a above ground pool (floater) thermometers]?
Do trihalomathanes form when chlorine is added to the water during the treatment process?
Do u know wat is alkaline???
Do u know which compounds have a density around 0.8g/ml?
Do you believe the key to developing cold fusion is the development of large water molecule?
Do you find it strange that Dr Dave P has 4 thumbs down, yet still got 5 votes.?
Do you get any reaction when u add barium nitrate to dilute nitric acid?
Do you know a good online guide for organic chem reactions (SN1, SN2, E1, E2 types...)?
Do you know anyting bout uranium???
Do you know chemistry? what do you think this experiment shows?
Do you know some simple lab test that shows the presence of a ring structure ?
Do you know something about second A group from periodic table?
Do you think Mentos + Diet Coke will unclog my drain?
Do you think that Richard Will anwser this and if he dose how many stars or anwsers will it take?
Do you trust people who have greater than 50% best answers.?
Does Magnesium have an odor?
Does "Ni+1" mean it has 1 extra election or it lost an electron?
Does 1 ml of urine or 1 ml os distilled water have a greater specific capacity and why?
Does a catalyst have an effect on the position of equilibrium for a reaction?
Does a Chem major wanna help me please????????
Does a higher molar mass mean ahigher boiling point?
Does a precipitate form?
Does a release of a gas indicate a chemical change?
Does a solution always have water in it?
Does a strong base produce 100% of the maximum hydroxide ions?
Does a weak acid produce a small fraction of hydronium ions?
Does adding common salt in water make water more polar?
Does air pressure have a significant effect on the rate of evaporation?
Does all matter produces CO2 when burned?
Does any one have the answers to this Chemistry homework, "And it's not in my textbook"?
Does any one know the equation for collision?
Does any one know what S.F.I.A unit in a refinery stands for?
Does anybody know any sites that have the colors for hydrion paper and cabbage juice indicators?
Does anybody know how to make gellied alcohol? not for drink?
Does Anybody know if there are any pyrotechnic schools near chicago?
Does anybody know the contact no of Mrs.Aparna...the chemistry teacher of DUFF HIGH SCHOOL FOR GIRlS,Kolkata.?
Does anyoe know the latin root for lithium?
Does anyone agree that Irish Spring Soap loses its scent (smell) after a long time?
Does anyone have any cool science experiments?
Does anyone know a good site which contains all about chemistry, both organic and inorganic chemistry?
Does anyone know a test to find out if a susbstance is ethanoic acid?
Does anyone know a webiste where I can buy liquid chloroform?
Does anyone know about Biosteel?
Does anyone know about half-life?
Does anyone know any interesting facts about chlorine?
Does anyone know anything about atoms??
Does Anyone Know Anything about Kp and Equilibrium?
Does anyone know anything about Q-torch lighters?
Does anyone know anything about Robert Stan Brown?
Does anyone know how to melt down silver and what you need to do this?
Doe's anyone know if it is possible to be frozen and still be alive when you get un-frozen?
Does anyone know of any liquids that you can mix at home that is self oxidixing? Like liquid oxygen?
Does anyone know of any method or journal article on extracting synthetic hormones in plants?
Does anyone know polar and non-polar molecules?
Does anyone know some good facts about zinc like its density,ductility, or mellability?
Does anyone know the Diet Coke and Mentos hight record?
Does anyone know the formula for the following compounds containing type II ions?
Does anyone know the name of the formula Mn3(PO4)2 and MnPO4?
Does anyone know the petits formula for calculating gross calorific value(G.C.V & L.C.V)?
Does anyone know the relative temperatures for a mood ring?
Does anyone Know the slowest moving liquid known to man???
Does anyone know these?
Does anyone know waht is Fe(HCO3)2?
Does anyone know what an RNA strand looks like?
Does anyone know what an RNA strand looks like?
Does anyone know what liquids they use in this youtube video?
Does anyone know what the following ionic compounds arefor : YCIO3, SnS2, Ti(CN)4, CoCO3, CdSO3, Cu(NO2)2?
Does anyone know what the particles are called that are smaller than atoms?
Does anyone know what the polyatomic ion Ba(MnO4)2 stands for? Ive been searching and I can NOT find it. HELP!
Does anyone know where i can find a fire retardant spray?
Does anyone know where I can find the markscheme for paper 2 of the HL chemistry exam of May 2004?
Does anyone know where I can find the price of carbon fiber? Ideally current and historical. Thank you!?
Does anyone know where i can get some facts on Berkelium from?
Does anyone know where there are AP free response questions for chemistry. I need questions and the answers.?
Does anyone know where to buy potassium chloride and calcium chloride"?
Does anyone know??
Does anyone knows the salt refination process ?
Does anyone need help with elements?
Does anyone out there know about the effects of benzene poisoning on the brain and the body?
Does carbons bondings have any unique characteristics? if they do what are they?
Does concentration of a solution affect specific rotation?
Does Cu+2 have the same atomic mass as Cu??
Does cyanide kill caustic cleaner?
Does d socity use toxic waste?is it used as a fertilizer?what does the govenment have to say about toxic waste
Does draining a car battery reduce its lifespan? If so, how??
Does Fructose have a polar, non-polar or ionic bond? Where can I get more information on this?
Does gas show up on a drug test?
Does helium form any chemical copmpounds?
Does hot water neutralize bleach?
Does Hydrogen Sulfide support combustion?
Does ice melt faster in acid or water?