Chemistry Questions and Answers
Identify a household substance in which an ice cube will sink.?
Identify the lewis acid and lewis base?
Identify the major species (excluding water H2O) present in an aqueous solution of NH4CH3COO.?
Identify the true statement(s) about sulfur? sulfur's atomic radius is smaller than oxygen's atomic radius,
Identify wheather exothermic or endothermic?
If 12.0 grams of aluminum reacts with HCl according to the reaction below, how many liters...?
If 12.0grams of aluminum reacts with HCL accorinding to the reaction below how many liters of hydrogen gas...?
If 15 percent of a number is 0.3 what is 45 percent of N?
If 15.0 g ethyl alcohol (CH3CH2OH) are dissolved in 500 g water, find the molality of the solution?
If 15.0 g ethyl alcohol (CH3CH2OH) are dissolved in 500 g water, what is the molality of the solution?
If 15.0g ethyl (CH3CH2OH) are dissolved in 500g water,find the molality of the solution???
If 16g of aluminum oxide were produced, what is the percent yield of the reaction below?
If 16g of methane is allowed to react with 32g of oxygen what is the limiting reagent?
If 20.0 grams of KOH reacts with 15.0 grams (NH4)2SO4 according to the reaction below, calculate...?
If 20.0grams KOH reacts with 15.0grams(NH4)2So4 according to the reaction bewlow calculate the iters of NH3..?
If 4 is written in a specific color on a chemical bottle, what it is meant?
If 40.0 grams of H3PO4 reacts with 60.0 grams of MgCO3 according to this reaction...?
If 40.0grams of H3PO4 reacts with 60.0grams of MgCO3 according to this reaction, 2H3PO4+3MgCo3->Mg3(PO4)2+..
If 41.38 mL of a sulfuric acid solution reacts with 0.2888g of..?
If 56.98 g of iron filings reacted with an exces amount of copper (I) sulphate, how many moles of solid formed
If 6 M of H2SO4 is substituted for 6 M HCl will more or less drops of 6 M H2SO4 be required for .....
If 8.87 g of As2O3 is used in the reaction and 5.33 g of As is produced, what is the percent yield?
If a bottle of amonium hydroxide and hydrogen peroxide are opened,does the strength diminish with each use?
If a cell potential is positive for a galvanic cell, what does that mean?
If a product contains sodium hydrogen carbonate, how could i test it for the presence of sodium bicarbonate?
If a relative in 1863 was a zinc manufacturer, what did he produce?
If a soft drink is cooled down, what happens?
If a solution is 6% vinegar by volume. That means it is 6 parts vinegar to 100 parts water. Right?
If a substance forms intramolecular hydrogen bonding, the effect on the ability to form ...?
If a substance is a strong elctrolyte, is it necessarily a strong acid?
If a substance oxidizes another, does it take electrons from the other?
If a yellow precipitate was obtained with AgNo3, could you conclude that only Br or I is present in d mixture?
If Ag atoms occupy corners of a cube in a lattice and Cu occupies the centers, what's the simplest formula?
If all the atoms of an element are identical in various respects then how can two hydrogen atoms combine?
If an acid has an H+ concentration of 1.0 times 10-4, what is the ph?
If an acid has an H+ concentration of 1.0 times 10-4, whats the pOH?
If an acid is added to the water, the pH will?
If atmospheric pressure ona certain day is 749 mm Hg, what is the partical pressure of Nitrogen?
If CH4 gas and C4H8 gas are released simultaneously at the left and right ends respectively of 50cm long ..
If fatty acid A has more double bonds than fatty acid B, which will have the lower boiling temperature?
If fire is the rapid oxidation of a substance, does that mean that ash is a form of rust?
If have 85% phosphoric acid (by weight), and mix 10mL of it with 75mL of water, what is your new concentration
If I filled a balloon with a ton of carbon dioxide, would it crush me?
If i had a test tube ofpure oxygen, is there anything cooli could do with it.?
If i had some hydrogen in a test tube, is there anything cool i could dowith it?
If I have a substance that is 70% pure, and want to mix it so it is 50%...?
If i put chlorine to get rid of alga in science experiment does it change the conductivity of water with NaCl?
If I ran hydrogen peroxide through a still, would I be separating the hydrogen away the oxygen.?
If i use phenolftalein what shoul i explain...?
If I were to add aluminium sulfate solution to barium chloride solution, what would the precipitate be?
If ph of a solution is 7.4 so what is the hydrogen ion concentration of that solution?
If purified Acetylsalicylic acid is not completely dry before the final weighing, how does this ..?
If silver has a specific heat of about 0.06 cal/g c, how many calories will it take to raise the temperature?
If sodium fluoride is a poison,- (used in rodenticided) Why is it put into drinking water?
If solutions of NaCl and Pb(NO3)2 are mixed, how many precipitation reactions will there be?
If solutions of Ni(NO3)2 and KCl are mixed, how many precipitation reactions will occur?
If solutions of Ni(NO3)2 and KCl are mixed, how many precipitation reactions will occur?
If someone shots a nuclear central with a gun, what happens ? Does it explode ?
If the concentration of Mg in sea water is 1400mg/l what OH concentration is required to precipitate Mg(OH)2?
If the distilled water was not boiled?
If the fictional element G could react with sulfur to form an ionic compound with the formula GS2...?
If the heat of vaporization for water is 540 cal/g, how many kilocalories are released when 5.00 g of steam is
If the Ksp for PbI2 is 3.1 x 10-7, will precipitation of PbI2 occur when 10mL of 1.0 x 10-5M Pb(NO3)2 is?
If the mass of a proton, Mp, is 1800 times the mass of an electron, Me?
If the molecular weight is 146 amu. what is the molecular formula?
If the O2 produced is selaed in a 5.00L container at 35, 0deg C What's the pressure in the container in atmosp
If the O2 produced is selaed in a 5.00L container at 35, 0deg C What's the pressure in the container in atmosp
If they oppisite of large is small and the oppisite of small is large. What is the oppisite of medium?
If two balloons have the same amount of atoms. Does that mean they have the same volume?
If u set salt alite will it burn?
If u want to become a pharmaceutical should u take biochemistry or inorganic chemistry ?
If u were going to multiply hydrochloric acid with chlorine how much leg strength is needed for baseball?
If we are adding phenol to water what will happen?
If we have only 4.0x 10 (to the 24th) molecules of HNO3, how many grams of NO2 will be produced?
If we remove the malai (upper layer of boiled milk) what will hapens?
If you are working a problem that asks you to find the solubility of Cr(OH)3 in water and you assign variables
If you are working a problem that asks you to find the solubility of Cr(OH)3 in water and you assign...?
If you dissolve 14.08g of copper chloride in enough water to make 266 mL of solution, the concentration of the
If you dissolve 9.07g of NaOH in enough water to make 236.0 mL of solution, what can you expect the pH of the?
If you go to college, wanting to major Chemistry?
If you had the chance to travel to outerspace would u enter a black hole?
If you had the means, would you strap helium ballons to your lawn chair and float away?
If you have 1 mole of Cl2O, how many atoms of chlorine are there?
If you have 2 unknown solutions and put them in a testtube and the precipitate is white...?
If you have 25mL of 1.5M KCL, how many moles of KCL do we have?
If you increase water vapor why does the partial pressure of other atmospheric gases decreases?
If you light Play-Doh on fire will it explode?
If you mix helium with water in a container, will it make the water less dense?
If you remove 2 electrons from an atom, what would be the new charge?
If you think you're a chem genius try answer this?
If you use 623 g of water, what mass (in g) of ethylene glycol should you use?
If you were asked to find the temperature using the ideal gas law, what would the formula be?
If you were provided with the density of a gas and asked to find the molecular weight...?
If your barometer reads 750.25 mm of Hg. what is the atm. pressure in kPa?
I'm a girl... Chemistry? It's really about chemistry.?
I'm asking about Carboxylic acid and its Derivatives. We were ask to research in advance prior to our expt.
I'm going to start my organic chemistry class in a few weeks. Suggestions:_?
I'm have 0.1 M hydrochloric acid, 0.1 M acetic acid, 0.1 M sodium hydroxide, and 0.1 M aqueous ammonia...
I'm looking for a weak alkali that would not hydrolyse an ester. Could anyone help me with this?
I'm not too sure where to start on this one. I am still confused with the half life concept a little.?
I'm placing the question below?
I'm trying to convert base pairs to kDa, in other words, what is the weight of 100 bp in kilodaltons?
Im writing a chemistry paper on "The water we drink". Any suggestions on where to begin??
Importance of predicting the yeild in the identification,minining & extraction of commercail ore deposits?
Impregnating desiccant with cobalt chloride?
In 2H2+O2--->2H2O, what is the number of molecules of oxygen needed to form 0.8mol of water?
In a batch reactor, ozone oxides water for treatment. The system takes at 25ºC and 1 atm.?
In a Bond Energy problem, does the diatomic oxygen have a single bond or double?
In a certain chemical reaction 1.00 gram of product is produced in 15 minutes when the reaction is carried o?
In a condensed structural formula, each carbon atom is.?
In a CSTR, why does the reaction rate increase as the flow rate of the reactants increase?
In a home pool when the PH is far too high,would it be (PH minus) that you would add?
In a home pool when the PH is far too high,would it be (PH minus) that you would add?
In a living cell,equilibrium is never attained.Explain this phenomenon.?
In a living cell,equilibrium is never attained.Explain this phenomenon?
In a particular chemical reaction 2 bonds are broken and no bonds are formed. Based only on this information..
In a reaction 4 mole of electrons were transferred to 1 mole of HNO3.the reactant is??
In a solution, is the solvent a solid, liquid, a gas? or a combo of them?
In a swimming pool, what makes the water hard?
In a voltaic cell with electrodes made from zinc and copper, the zinc is being dissolved into solution...?
In a zinc/magnesium battery, the electrolytes could be?
In acid base titration 25.62 mL of an NaOH solution are needed to neutralize 26.23mL of a 0.1036 HCl solution?
In an alkaline battery, three sides of the casing are made of which metal?
In an aqueous solution the [H+] is 1.0 x 10^-5 M. What is the [OH-]?
In an aqueous solution the [H+] is 1.0 ´ 10-5 M. What is the [OH-]?
In an energy diagram for a chemical reaction what species appears at the highest energy?
In an energy diagram for an endothermic chemical reaction which of the following is true?
In an energy diagram for an exothermic chemical reaction which of the following is true?
In an energy diagram for an exothermic chemical reaction which of the following is true?
In Ba(H2PO2)2 molecule what is oxidation number & oxidation state? how we will find it?
In chemistry is mercury a metal or a liquid?
In chemistry, what does PH represent?
In chemistry, what is the difference between chemical properties and physical properties?
In electrolysis where the reaction start first, at anode or at cathode?
In glycolysis follwed by either lactic acid or alcoholic fermentation produce___?
In Hindi Kala Namak & Sendha Namak what are the chemical word?
In molecular terms, describe how emulsifiers are able to mix polar and non-polar sunstances together.?
In organic chemistry what does PP stands for?
In Organic Chemistry what does/is DBr?
In physical chemistry why does the boiling point increase with pressure?
In Pickle preparation what is the purpose of adding Oil?
In relation to gas mixers, what is the difference between a gas mixer and a gas blender?
In relation to the natural resource rubber, what are its sources, uses, and problems associated with its use??
In solar panels what does doping the silicon crystals mean (with boron)?
In synthesis of an alkyl halide, why is an excess of concentrated Hydrochloric acid necessary?
In synthesis of an alkyl halide?
In terms of enthalpy, how would this reaction proceed (2)H20 (l) + electrical energy --> (2) H2 (g) + O2 (g)
In the chemical formula of hydrogen peroxide( H2O2) why does both the 2 does not get canceled?
In the distillation process, what is the importance of continuous flow of water in the condenser?
In the equilibrium constant expression for C3H8(g) + 5O2(g) = 3CO2(g) + 4H2O(g)...?
In the experiment S2O8-2 + 2 I- ->2 SO4 -2 + I2, what is the reducing and oxidizing agents?which species is
In the following reaction, how many liters of NO gas are produced if 20.5 liters of N2 gas are...?
In the following reaction, which way should the equilibrium shift when hcl is added? why?
In the haber process, it is true the higher the pressure , the more favourable the foward reaction is?
In the peroxide molecule, H2O2, the oxygen has an oxidation number of?
In the polymerization of caprolactone to PCL, tin octanoate is usu used. Does it have adv over alkoxide ?
In the reaction below, what is the correct coefficient for sodium chloride?
In the virtral chemlab assigment, Oxidation-Reduction Titrations, Determination of Iron, what was the color..?
In thermodynamics and Heat Capicitance why does q = delta H when pressure is constant?
In Tie Dying how can you distinguish a homogeneous mixture from a homogeneous mixture?
In titrating a H3PO4 solution, it was found that 43.68 mL of 0.1215 M NaOH would neutralize completely...?
In using Markovnikov's rule, the hydrogen in HCl adds to the carbon in the double bond:?
In water, a substance that ionizes completely in solution is called a?
In what countries can you find gold, nickel, carbon, and uranium?
In what particular reading of thermometer where in Celsius and Fahrenheit are numerically equal?
In which direction would the following equilibrium run. If the volume of the container were increased?
In which of the following forms does graphite conduct electricity?...solid, liquid, gas, aqueous?
In writing the equilibrium constant expression we use square brackets. The notation [A] means ...?
In writing the equilibrium constant expression we use square brackets. The notation [A] means which of the flw
Increase acetic acid content of vinegar by evaporation?
Indicate the major differences?
Inexistence of glass transition temperature ?
Info needed on what happens when daimonds are heated at high temperature?
Information/ background on Ionic Bonds? Info/background on salts?
Ingestion of a scalp application?
Initial partial pressure SO3 .500atm at 1000k. At equilibrium SO3 pressure is .200 atm at 1000k. Kp at 1000k?
Instrument used 2 draw a writen record of changing air pressure is called A.mercury B. barograph C. altimeter?
Intermolecular forces?
Investigatory project in chemistry?
Ionization energy- please help?
Ionways water purification process?
Ir, nmr, mr help..?
Iron (obtained from its ore by smelting)?
Is 7 the only neutral pH substance?
Is a burnt magnesium ribbon still a metal?
Is a Copper (II) Ion mean it is Cu2+ or Cu2-? or neither?
Is a hydroxyl ion called hydroxide when in a compound?
Is a thiol group an ortho/para director on a benzene ring?
Is acetic acid vitamin c? What is its chemical symbol?
Is alcohol an alkali or acid?
Is alluminum a mixture or pure substance?
Is antifreeze an electrolyte or a nonelectrolyte?
Is antimatter capable of destroying the world, if so, how much would it take?
IS ANYONE ELSE MELTING WITH THIS HEAT? I can't sleep, so here I am. Does the heat bother anyone else?
Is Baking Powder or Baking Soda the substitute for Baby Powder?
Is biochem and physical chem double major a wise choice for someone who wants to become a chemical engineer?
Is bleach a pure substance or is it a mixture?
Is blood a pure substance or mixture?
Is boiling water entropically favored?
Is Br2 a stronger oxidizing agent than l2?