Chemistry Questions and Answers

Acetylene purity test?

Acid and Base?

Acid, mushrooms or a good strong cup of coffee?

Acid-base equilibria question help?

Acidic and Basic?

Acidic atmosphere...?

Activated Charcoal?

Active carbon sanitization?

Actual meaning of hydophilic & hydrophobic components?

Adding ZnO to Hcl what will happen?

Additional question to Ethylene Dibromide?

Addresses of analytical labs in bangalore city?

ADP and AMP?

ADP conversion?

ADP is a component of?

After 50 kernels have popped, how many kernels pop in 5 seconds?

After a urine sample has been collected how long can it be stored before it is analyzed for chemicals?

After the reaction has gone to completion, which gas remains in excess and how much is present?

Aga cookers used to use KHEISELGERE as a heat insulator. What is it manufactured from?

Agent orange?

Air pollution in pennsylvania causes ______ in new england becuz the wind blows the pollution into new englan?

Alcohol a fuel?

Aliphatic and Aromatic Hydrocarbons Experiment: What're the equations for the tests giving positive results?

Alkaline and acidic solutions?

Alkaline hydrolisis?

Alkalis can be used for the following purposes except ______________?

All free elements have an oxidation number of...?

All monatomic ions have oxidation numbers equal to the what?

All monatomic ions have oxidation numbers equal to the?

All of the following are diprotic acid except--?

All of the following are strong electrolytes except:?

All of these have 7 electrons in their outermost energy levels except Cl, I, H, Br, F?

All the periodic motions are repetitive but all the repetitive motions are not periodic . Explain .?

Also another question?

Aluminum reacts with sulfuric acid, which is the automobile batteries. if 20.0 grams of Al is placed into a so

Always wondered this. Why doesn't water create fire, as opposed to put it out?

Am I right ??

Americans, help. do you use the minim (min) in the U.S as a unit of liquid volume measurment?

Amino Acid Jokes?

Ammoxidation of toluene occurs in liquid phase at 388K and 60Psi. Is it true?

Amongst ethanol, methanol, propanol, butanol, pentanol and octanol, which is the best fuel for heating water?

An airbag needs 15 mols of nitrogen gas, so how many grams of sodium azide should be installed in the airbag?

An alkene is a carbon compound that contains a _____ bond?

An alkyne is a carbon compound that contains a _____ bond.?

An ammonia solution has a pH of 8.30, what is the [OH-] in this solution?

An element has an electron configuration that ends in 5d4. Which column is it in?

An element with protons and 14 electrons has what atomic number?

An HCl solution has a pH of 3.10, what is the [H+] in this solution?

An HCl solution has a pH of 3.10, what is the [OH-] in this solution?

An HCl solution has a pH of 3.10, what is the [OH-] in this solution?

An imaging technique that detects the energy emitted by hydrogen atoms in a magnetic field is known as?

An increase in temperature usually:?

An inert gas is bubbled into a rigid, sealed container of water. An increase in gas pressure would do what?

An ion has 17 protons, 18 neutrons, 18 electrons. write down the mass number, atomc number and its formula.?

An ionic bond between metals and oxygen produces what?

An offer to someone?

An organic compound composed of carbon and hydrogen connected only by single bonds is what?

An unknown acid taht we will call HA ionizes 3.9%. If the concentration of the acid was originally 0.222M..?

An unknown acid that we will call HA ionizes 3.9%. If the concentration of the acid was originally 0.222M...?

An unstable atom?

Analysis of water for dissolved oxygen?

Analysis of water for dissolved oxygen?

Analysis shows 2.431g of magnesiumm, Mg chemically combined with ecxactly 1.6g oxygen O2, to form an oxide?

Anhydrous Ammonia?

Anions is the strongest base?

Anode Cathode Chemistry Question?

Another hard question!!!?

Another hard redox reaction...??

Answers for Chemistry PLZ?

Answers to my chemistry lab manual?

Any chemist or chemistry major, etc?

Any clear insulators that work well?

Any reaction has a apposite reaction according to newton third law but why whenpull the cot horse pull the c?

Anybody knows about Alchemi/y ?

Anybody use laundry detergent for dishwashing liquid?

Anyone has answers to this question on Balancing Equation?

Anyone have experience with Cold Water Extraction?

Anyone have pyro websites?

Anyone know the significance of avidin and biotin in spectroscopy?

AP Chem Summer Homework-- finding diameter of a model?

Ap Chem Trouble?

Ap chemistry?

Aqueous solubility and pH?

Aqueous solution help?

Arange from lowest pH to highest pH Plz!?

Are all acids or acidic substances corrosive to metals?

Are all d elements isotopes?

Are all isotopes radioactive?

Are all types of oil flammable??

Are amines soluble in petroleum ether?

Are any of these a brine solution? KCl(aq), NaBr(aq), KBr(aq), NaCl(aq)?

Are batteries examples of galvanic cells?

Are colloids heterogenous mixtures or homogenous mixtures?

Are computers flammable?

Are diffusion and absorption is the same?if different, what are the differences?how about adsorption?

Are farts really flamable?

Are gases more rigid than liquids or solids?

Are jewelers able to melt different karats of gold (ex 14 and 18) together to make one piece of jewelry?

Are lipid's organic compounds?

Are lipids(oils) soluble or insoluble in ethyl acetate?

Are L-peptid amino acids found in butter?

Are metallic structures made of ions or atoms?

Are metals a natural or man made substance?

Are my answers correct?

Are organic liquid's lighter than water?

Are physics and chemistry projects removed from cbse 12th syllabus?

Are plastic water bottles safe to re-use or are they carcinogenic based on their DEHA content?

Are plastics still made with PCB's?

Are the followind acids or base: Hydrogen peroxide, Saline solution, and Pepto-Bismol? Please and thank you?

Are the following will increase or decrease the calculated density of the substance?

Are there any combustible metals?

Are there any real Chemists on here ??

Are there any solvents that dissolve concrete ?

Are there any theories/possibilities about sending tropospheric ozone to atmosphere?

Are there catalysts that can convert Carbon Dioxide (CO2) into Carbon (C) and Oxygen (O2)?

Are there different degrees of stability in nuclear material?

Are there legit products to help you pass a hair follicle drug test?

Are water molecules more active in gas, in liquid or in a solid state?

Arrange the acids HOBr,HBrO3,HBrO2 in order of increasing acid strength. Choices below!?

Arrange the following in increasing order?

As a chemical machine, what is the efficiency of the human body?

As the [H+] in a water solution increases the [OH-] decreases?

Ascorbic acid is vitamin C, C6H8O6,(176g/mol) is a diprotic acid where ka1=6.8*10^-5 and ka2=2.7*10^-12.?

Asperin is 60.00% carbon, 4.48% hydrogen and 35.53% oxygen. What is the emperical formula for aspirin?

Aspirin (C9H8O4) is an acid which can be titrated with a base to determine purity. If an aspirin tablet...?

Assingment help!?

Associative orderings, a question about group qualities and singularity.?

Assume all the sulfur in the coal ends up as SO3.?

Assuming Bonds took Steroids. . . .?

Assuming constant temperature, what volume would a gas occupy at 82.3 kPa if the volume is 344 cm3 at 110 kPa?

Assuming ideal behavior, how many grams of acetylene are in the tank?

Aswer these with writing whole answers?

At 108 degrees C, the pressure in a 10.0L flask is 874mm Hg. How many moles of gas are in the flask?

At 570 mm Hg and 25C a gas sample has a volume of 2270mL.?

At 570. mm Hg and 25°C, a gas sample has a volume of 2270 mL.?

At constant pressure the temperature of a 4.00 liter sample of gas is decreased from 400 K to 300 K. ...?

At constant pressure the temperature of a 4.00 liter sample of gas is increased from 300 K to 400 K. continued

At constant temperature the pressure on a 10.0 liter sample of gas is changed from 1140 torr to 1.00 atm. What

At constant temperature the pressure on a 6.0 liter sample of gas is increased from 1.0 atm to 2.0 atm. cont.?

At constant temperture, a sample of helium at 760 torr in a closed container was compressed from 5.00L - 3.00L

At home chemistry Labs?

At STP, temperature and pressure have the values of?

At what temperature does air condense?

At what temperature does water boil on the top of Pikes Peak, Colorado?

At what temperature will the celcius scale and the fahrenheit scale be numerically equal?

Atheists: Do you believe in Chemical evolution? That Hydrogen "evolved" into uranium?

Atoms of 16O, 17O, and 18O have the same number of.?

Atoms..?

Attributes of Similar Chemical Formulas?

Average Percent Error?

Azonium salt reaction mechanism??

Back Issues of Journal of Chromatography online?

Bakelite upper and lower temperature limits?

Baking Soda Chemistry Question?

Balance by partial equation method:-?

Balance net ionic reaction?

Balance redox reaction?? I've got some problem with this: PbO2 + S2O3-2 -----> PbO + SO3-2?

Balance the equation of H2SO4 + NH4OH--- (NH4)2SO4 + H2O?

Balance the equation:NH3(g) + O2(g) --> N2(g) + H2O(l)?

Balance the ff: 1. Mg+N, 2. HCl+NH4(OH3), NH4PO4+Bl(2N), 5. CO2+BaO, 6. NH4+CH3COOH,?

Balance the following equation, representing a reaction that takes place in acidic aqueous solution.?

Balance the following redox equation using the smallest integers possible and select the correct?

Balance the following redox reaction in basic solution. Cl207 (g) + H2O2 (aq) -- ClO2- (aq) + O2 (aq)?

Balance this chemistry equation (10 points) ?

Balance this equation. Prove that it obeys the law of conservation of mas by using fomula masses.?

Balanced Chemical Equation?

Balanced Equations?

Balancing Chemical Equations?

Balancing equation problem sum?

Balancing equations?

Balancing Redox Equations?

Balancing Redox Reaction - Spontaneous or not?

Balancing RedOx Reactions in Acidic or Basic Aqueous Solution?

Basic Chem / Name the compounds site?

Basic Chem Questions?

Basic chem unit based word problem but I am bad at word problems, please help!?

Basic chemistry question!!!?

Basic ingredients for Thermite?

Basic ingridents to gun powder?

Batteries Question?

Battery - Lemon, Potato, Beer, etc?

Battery components?

Battery experiment - If I can't find zinc, which will act as my electrode, can I use a galvanized product?

Battery Question!?

Battery question?

Beakers and flask contain calibrations for volumes of liquids but are not used in performing accurate measurem

Beer's law and absorbance using a spectrophotometer?

Benzene considered inert. How does the body metabolize benzene?

Benzophenone oxime mechanism?

Benzylechloride can be prepared from toluen by chlorination with-?

Besides H2O, are there any other naturally occuring chemicals/compounds that people can just drink down?

Besides helium, what else can i put in a balloon to make it rise?

Best organic chemistry guide?

Between biochemistry and chemistry major, which one is harder to learn and why?

Bile salt and?

Biochemistry Questions?

Bleaching hair what is 70ml in mg help pleasse?

Boiling an egg! Help!!?

Bond energy ??

Bond Order and Bond Energy?