Chemistry Questions and Answers
When bowling pins at the end of an alley are hit by a bowling ball, the entropy of the pins ______?
When converting temperature from Kelvin to Celsius, you must ?
When do you use malonic ester and when EAA?
When elements react to form compounds,...?
When energy is converted to one form to another, what is usually produced?
When ethane (C2H6) reacts with Cl2, the main product is C2H5Cl but other products containing Cl, such as C2...
When exposed to oxygen, what colour flame does Tin burn with?
When gaseous nitrogen and hydrogen are converted to gaseous ammonia, 鈻睪^0= 16.64kJ/mol.?
When H2 and O2 "combust" do they explode or implode?
When heated, sodium metal combines with chlorine gas to form solid sodium chloride...?
When hydrogen chloride is eliminated frm 2-chlorobutane,three isomeric alkenes wif the formula C4H8 r prduced?
When is propane a liquid?
When leaves change color, is that a physical or chemical change?
When methanol, CH3OH, is dissolved in water, a non-conducting solution results. When acetic acid, HC2H3O2, dis
When nitrogen reacts with oxygen to form nitrogentrioxide gas, the reaction starts out very quickly..?
When oil is heated for cooking and food is added how do the 2 smells combine?
When one formula unit of Co(No3)2 is dissolved in H20, what ions are formed?
When one substance has been dissolved in another, a ____ is created?
When petroleum runs out, what will we make plastics out of?
When piperonal & 1-indanone are mixed, why do they liquify?
When potassium iodine reacts?
When propene and bromine react what does this form?
When sinking Ag in NaHCO3 in H2O to remov tarnish do I disolve the NaHCO3 or springle over silver?
When six protons and six neutrons unite to form a carbon atom, the net mass of the 12 nucleides decreases?
When sodim reacts with water, is the resulting solution acidic or alkaline?
When solving a chemistry problem, what does P = nRT mean?
When sufficient quantiity of heat has been added to reach the boiling point of a solution, what happens to any
When sulfur trioxide gas reacts with water, sulfuric acid forms?
When synthesizing a polymer, a condensation reaction is formed by the head-to-tail joining of what?
When the enthalpy of dissolution is positive, should solubility increase/decrease w/ increase in temperature?
When the equation N2 + H2 ---> NH3 is balanced, the sum of the coefficients is...?
When the wax of a lava lamp is on the top, how are the molecules behaving?
When they say a pool has "chlorine" in it, what is it actually?
When they say gold is th best conducter of elcetricty what do they - ?
When to use Covalence and Electrovalence?
When two atoms of different electronegativty values form a covalent bond does it result in polarity?
When unsaturated aqueous solutions of sodium nitrate and potassium chloride are mixed, the molecular and ionic
When using sodium hydroxide, NaOH as a solvent, how does a carboxylic acid dissolve in it ...?
When was platinum founded?
When water evaporates, is it giving off hydrogen gas?
When water loses oxygen through, does it affect its chemical make up?
When were the safety matches invented?
When will one liter of chlorine gas (99.9 %) despersed into a closed room reach a concentration of 10 ppm ?
When writing the metal oxidized in redox equations, do you include a subscript?
When writting a chemical compound why do we cross the charges?
When you calculate percent error what is the cause if the percentage is higher than 100%?
When you burn gunpowder, it leaves a blue residue. What is this blue stuff?
When you burn your hands on a stove..?
When you double the distance from a radiation source, how do the counts per minute (CPM) change?
When you exhale is carbon dioxide or monoxide??
When you hold onto the dome of a machine called Van de Graaff generator, why does your hair stand up?
When you make ice cubes: it is a exothermic process, or the heat of vaporization must be removed, or?
When you put nitrogen and hydrogen together what happens?
When you use alcohol in sanitizers, is it biodegradable?
When you walk on the carpet with your socks on, do the electrons from the socks transfer onto the carpet, or..
When you're doing chemistry work, do you use as much logic as in mathematics?
Where are nonmetels located on the periodic table?
Where are the chemistry wizs?
Where can I buy 30% Hydrogen Peroxide, Sodium (or Potassium) Iodide, and Lycopodium Powder in New York City?
Where can I buy a high end electrolisys machine for converting water into hydrogen/oxygen?
Where can I buy Aluminum Powder?
Where can I buy Ethonal?
WHERE CAN I BUY kno3?
Where can i buy luteolin -3.5-diglucuronide?
Where can I buy raw elements?
Where can i buy raw sodium?
Where can I buy rubber mix or the ingredients to make rubber?
Where can I buy Sodium Acetate in the Uk?
Where can I find a full chart on the rockwell hardness that has all types of metals ect...?
Where can i find a list of Coagulants for Flocculation with low or no Toxicity?
Where can i find a shell from a gastropod?
Where can I find a textbook online that I can read for free?
Where can i find a web site or instructions on how to make liguid nitrogen?
Where can i find an electron shell diagram of Vanadium?
Where can I find an example of an Investigatory project connected to biochemistry?
Where can I find answers to my chemistry homework?
Where can i find dry ice on the island of maui?
Where can I find free literature about industrial uses of ammonium metavanadate on Internet?
Where can I find good/cheap/lab glassware for organic synthesis..?
Where can I find litmus paper?
Where can i find methods of preparing cinnamic acid?
Where can I find Organic Chemistry reactions and synthesis problems?
Where can i find pictures related to chemistry processes? kindly suggest me some websites?
Where can I find Potassium Nitrate?
Where can I find practice chemistry tests with answer keys?
Where can I find sodium iodide?
Where can i find some teflon tubing:?
Where can i find the crystal structure of lithium sulfate monohydrate?
Where can i find the lewis symbol diagram for SiCl4?
Where can I find the lubrication oil equivalent table?
Where can i find the lweis symbols for SrCl2?
Where can I find the size of a molecule C5H8.?
Where can i found, monodiethylamin industry?
Where can i get EDTA - ethylenediaminetetraacetic acid - tetrasodium salt?
Where can i get a dot diagram for zirconium the element?
Where can i get a good periodic table from to print out?
Where can I get ammonium chloride?
Where can i get chloride ion?
Where can I get chloroform?
Where can i get h2so4 i.e. sulphuric acid?
Where can I get liquid Sodium?
Where can I get Sodium Acetate Salt?
Where can I get some Cyanide?
Where can i get the chemical structure for Starch?
Where can I purchase chloroform?
Where can i sell or dispose of liquid mercury?
Where can rhodium be found?
Where can we get pH paper in california?
Where can you buy pure sulfer?
Where can you buy sulfur?
Where can you get powdered aluminum, powdered iron oxide, and magnesium?
Where can you usually get a complete set of equipments that you will be needing for a science fair project?
Where coud i find potasium nitrate at around the house?
Where could I get Chloroform or other Inhale Unaesthetic in Mambai?
Where did the letter that is used to show the short form of the element come from? eg- Zinc = ZN?
Where do i get cornstarch?
Where do I get sodium pentothal?
Where do natural isotopes exist? Where are artificial isotopes synthesized?
Where does nuclear fusion occur?
Where does petrol come from?
Where does the energy come from in an exothermis reaction? what happens to the system? and the surroundings?
Where does the energy go to in an endothermic reaction when the surroundings get colder?
Where does the liquid metal Mercury come from? Is it found in a natural state? Or is is manufactured? Thanks!?
Where does water go when it drys?
Where in the atom would matter be found?
Where in the UK is a one stop shop for Chemistry Equipment?
Where is endothermic reactions used in everyday life?
Where is found Maurizia?
Where is silver found in it's natural element?
Where is sodium stored in? Suggest why?
Where is the gas smell coming from?
Where is the majority of the worlds copper mined at?
Where to buy Dry Ice?
Where to buy sulfur?
Where to find glue tape patents?
Where was the element hydrogen found?
Where would you find sulfur?
Whether phosphurus is a conductor?
Whether time for cbse revaluation has over?
Whhich of the following could not be titrated by .100M HCl solution no matter which indicator you used?
Which molecule has a bond angle of 104.5掳?
Which acid is also known as "Oil of Vitriol"?
Which acid is found in yorghut,let alone lactic acid?
Which acid is present in coffee?
Which among hexane, toluene, and naphthalene would make a better fuel? Why?
Which atom has a change in oxidation number of -3 in the following redox reaction?
Which balanced equation represents an endothermic reaction?
Which balanced equation, represents a redox reaction?
Which ballistic material is better for Bullet proof vests, Kevlar or Spectra?
Which base works best to maximize the E2 product in the reaction?(CH3)2CHCH2CH2CH2Br+base-->(CH3)2CHCH2CH=CH2
Which bond is stronger ionic or covalent?
Which bond is the most polar? 1.) C-C 2.) C-H 3.) N-H 4.) 0r C-N?
Which bond is the most stable?...?
Which bonds with oxygen??
Which cation forms white precipitate with sulphuric acid?
Which change of phase is exothermic?
Which chemicals do I need to determine the mass of the calsiumsulphate in 0.5dam water?
Which coin rust faster in fresh water or salt water?
Which color indicates the hottest part of a flame? RED or BLUE?
Which colors when mixed together make the color brown?
Which companies do produce the carbon-hydrogen refrigeration in the world?
Which compound in liquid form will have the highest vapor pressure?
Which compound is the least soluble? CuS, Ksp=1.27 x 10 -36, or AgCl, Ksp=1.77 x10-10, or Agl, Ksp =8.51x10-17
Which compound will have the highest boiling point?
Which compound will havethe highest boiling point?
Which country produces the most of these metals?
Which crystallisation technique is used for the experiment on "preparation & recrystallisation of aspirin"?
Which decays faster: an isotope emitting gamma radiation or an isotope emitting beta radiation?
Which decays faster: beta radiation or gamma radiation?
Which decays faster: Cessium 137 or Carbon 14?
Which describes an acidic solution?
Which detergent breaks up oil best?
Which dissociates more in potassium hydroxide? a strong acid or a weak acid?
Which dissociates more in water? a strong acid or a weak acid?
Which do conduct more electricity, acids or organic compounds?
Which doesnt have an octet of 8 electrons surrounding its central atom 1.) BCl3 2.) CCL4 3.) NCL3 4.) CL2O?
Which dye was likely to have caused the spot?
Which element does uv radiation react with the most on the periodic table.?
Which element in this group is the least reactive?why?
Which element increases its oxidation number in the following reaction 3KOH + H3PO4 -> K3PO4 + 3H20?
Which element is least reactive?
Which element would have physical and chemical properties similar to chlorine?
Which Enzymes does 10潞C Cold Water and Ice have?
Which Enzymes does 60潞C hot water have?
Which form of carbon is more oxidized?
Which formula represents a nonpolar molecule containing polar covalent bonds?
Which freezes faster? salt water or water?
Which fuel, petrol or diesel, is better to use in extremely cold environments?
Which gas has the highest effusion rate? Ar, He, Cl2 or Br2?
Which half-reaction shows conservation of charge?
Which halogen has highest electron attinity?
Which halogen has the highest electron affinity?
Which has both covalent and ionic bonds?
Which has more mass?
Which has no molecular geometry?Sulfur Dioxide, Carbon Dioxide,C2H2 and XeF2?
Which has the highest heat of hydrogenation? 1.1-hexene 2.trans-2-hexene 3.cis-2-hexene 4. 2-methyl-2-pentene?
Which has the largest solute particle size?
Which has trigonal planar geometry? (can be more then 1) 1.)CO3 2- 2.)NH3 3.) CH3+?
Which have the highest and lowest boiling points?
Which inert gas is used in electric lamps,weather ballons and in making neon signboards?