| solution | the successful action of solving a problem, the solution took three hours |
| Holocaust final solution | the mass murder of Jews under the German Nazi regime from until |
hydrogen bomb
H-bomb
fusion bomb
thermonuclear bomb | a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium |
| hydrogen ion concentration | the number of moles of hydrogen ions per cubic decimeter |
| solution | a method for solving a problem, the easy solution is to look it up in the handbook |
solution
answer result
resolution
solvent | a statement that solves a problem or explains how to solve the problem, they were trying to find a peaceful solution, the answers were in the back of the book, he computed the result to four decimal places |
solution
root | the set of values that give a true statement when substituted into an equation |
| hydrogen ion | a positively charged atom of hydrogen, that is to say, a normal hydrogen atomic nucleus |
| hydrogen bond | a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond |
| heat of solution | the heat evolved or absorbed when one mole of a substance is dissolved in a large volume of a solvent |
| solution | a homogeneous mixture of two or more substances, frequently (but not necessarily) a liquid solution, he used a solution of peroxide and water |
| aqueous solution | a solution in water |
Ringer's solution
Ringer solution | an aqueous solution containing the chlorides of sodium and potassium and calcium that is isotonic to animal tissues, used to correct dehydration and (in physiological experiments) as a medium for in vitro preparations |
saline solution
saline | an isotonic solution of sodium chloride and distilled water |
sol
colloidal solution
colloidal suspension | a colloid that has a continuous liquid phase in which a solid is suspended in a liquid |
hydrazoic acid
azoimide
hydrogen azide
HN | a colorless explosive liquid that is volatile and poisonous and foul-smelling |
| hydrogen cyanide | a highly poisonous gas or volatile liquid that smells like bitter almonds, becomes a gas at arounddegree Fahrenheit and is most dangerous when inhaled, the anhydride of hydrocyanic acid, used in manufacturing |
hydrogen
H
atomic number | a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas, the simplest and lightest and most abundant element in the universe |
| hydrogen atom | an atom of hydrogen |
acidic hydrogen
acid hydrogen | a hydrogen atom in an acid that forms a positive ion when the acid dissociates |
deuterium
heavy hydrogen | an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen) |
greenockite
cadmium sulphide | ore of cadmium, a rare yellowish mineral consisting of cadmium sulphide in crystalline form |
bicarbonate
hydrogen carbonate | a salt of carbonic acid (containing the anion HCO) in which one hydrogen atom has been replaced, an acid carbonate |
bicarbonate of soda
sodium hydrogen carbonate
sodium bicarbonate
baking soda
saleratus | a white soluble compound (NaHCO) used in effervescent drinks and in baking powders and as an antacid |
hydrogen peroxide
peroxide | a viscous liquid with strong oxidizing properties, a powerful bleaching agent, also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels |
| buffer solution | a solution containing a buffer |
phosphate buffer solution
PBS | a solution containing a phosphate buffer |
conjugate solution
conjugate | a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A |
| Fehling's solution | a liquid solution of copper sulfate and potassium tartrate and sodium hydroxide that is used to test for sugar in the urine, solution turns reddish when sugar is present |
isotonic solution
isosmotic solution | a solution having the same osmotic pressure as blood |
potassium bicarbonate
potassium acid carbonate
potassium hydrogen carbonate | a crystalline salt (KHCO) that is used in baking powder and as an antacid |
| hydrogen bromide | a colorless gas that yields hydrobromic acid in solution with water |
| hydrogen chloride | a colorless corrosive gas (HCl) |
| hydrogen fluoride | a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride, solutions in water are hydrofluoric acid |
| hydrogen iodide | a colorless gas that yields hydroiodic acid in aqueous solution |
| hydrogen sulfide | a sulfide having the unpleasant smell of rotten eggs |
cream of tartar
tartar
potassium bitartrate
potassium hydrogen tartrate | a salt used especially in baking powder |
solid solution
primary solid solution | a homogeneous solid that can exist over a range of component chemicals, a constituent of alloys that is formed when atoms of an element are incorporated into the crystals of a metal |
| Gram's solution | a solution used in staining bacteria by Gram's method, consists of one part iodine and two parts potassium iodide and parts water |
sulfide
sulphide | a compound of sulphur and some other element that is more electropositive |
zinc sulfide
zinc sulphide | a yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment |
| hydrogen-bomb | attack with a hydrogen bomb |