Chemistry (13th Edition)
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Metals are elements that display the highest ... more
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MetalsNonmetalsMetals are mostly solid at room ... more
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Chlorine(Non-metal): a. Physical properties... more
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Graphite is dark gray to black, soft, and slippery... more
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Though hydrogen is a non metal, its electronic ... more
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Laboratory preparation: a. Reaction of zinc ... more
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Ionic bond (NaH), covalent bond (CH4), and ... more
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Interstitial hydrides are the compounds of ... more
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(a)Potassium hydride0TY411-structure-of-potassium-... more
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Hydrogen economy refers to the economical ... more
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17, Chlorine, (HCl), Acidic.20, Calcium, Ca(OH)2, ... more
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Hydrides of Na and Ca are ionic, whereas hydrides ... more
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By fractional distillation of air, hydrogen and ... more
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; A chemical equation is balanced when the number... more
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; Two moles of (Heavy water) D2O produces two ... more
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Carbide: CaC2 (calcium carbide)Cyanide: NaCN (... more
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Cyanide ions are used to extract gold and silver. ... more
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Carbon burns with oxygen to form carbon dioxide(... more
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Coal is a fossil fuel and it consists mostly of ... more
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Coal gasification is a thermochemical process ... more
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Carbon dioxide is an acidic oxide, whereas carbon ... more
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; Carbon dioxide reacts with a hydroxyl ion to ... more
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; Initially, evaluate the overall number of ... more
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When the evolved CO2 gas is passed through lime ... more
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Sodium carbonate (Na2CO3) gives a white ... more
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The white precipitate is formed due to the ... more
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; white ppt of Calcium cyanamide and water are ... more
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On being exposed to air, sodium hydroxide pellets ... more
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In reactivity series, magnesium is above carbon, ... more
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Yes, both have 10 valence electrons. ; ... more
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Laboratory preparation:By heating a water solution... more
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Nitrogen fixation is the process in which ... more
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Industrially, phosphorus can be prepared by ... more
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molecule is unstable due to high angle strain in ... more
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a. b. ; 2 moles of ammonia react with three moles ... more
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a. b. ; a. 4 moles of sodium nitrate ... more
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; Sodium amide , dissociates in water as, The... more
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The reaction is carried out at high pressure. ; As... more
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The heat of lightning interacts with nitrogen and ... more
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During the thermal dissociation of NH4Cl, its ... more
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The oxidation state (O.S) of nitrogen on nitrous ... more
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The maximum O.S (oxidation state) of Nitrogen ... more
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Nitric acid is a strong oxidising agent, and ... more
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; 4 moles of KNO3 produce 4 moles of KNO2. ... more
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Linear ; Determine the total valence electrons in ... more
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; The heat of reaction is given as follows: ; ... more
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P has a large atomic size, and it can not form ... more
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P4. ; The addition of a non-volatile compound to a... more
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It is a two step reaction.Step 1:Step 2: ; In the... more
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; The balanced reaction is as follows: ; The ... more
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; In PH3 , as the confugiration of phosphorous ... more
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Industrial preparation of O2 involves the process ... more
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There are three types of oxides namely, Acidic, ... more
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; When barium peroxide is mixed with sulfuric ... more
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In the Frasch process, three concentric tubes are ... more
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Contact process involves the reaction of sulfur ... more
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In laboratories, hydrogen sulfide has extensive ... more
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; The molecular orbitals are derived by the ... more
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; The Gibbs free energy for a reaction is given ... more
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The oxidation number of F is -1 and O is 0. ; The ... more
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Sulfur is a large atom in the third row of the ... more
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; 1 ton is equal to 1000 kilograms. First, do the... more
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; The gas emitted by power plants is treated with... more
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Oxygen belongs to the second period of the ... more
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Due to the size difference between S and Cl, Br, I... more
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S.No.1.The boiling point of water is and the ... more
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; Find the amount of water in grams from gallons... more
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The reactions in which sulfuric acid acts as an ... more
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; The balanced chemical equation is the one which... more
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The five halogens can be produced by the following... more
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Used as disinfectants for swimming poolsPurify ... more
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On addition of sulphuric acid to sodium chloride ... more
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; The balanced chemical equation for the reaction... more
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Sulfuric acid is reduced to sulfur dioxide by ... more
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The green precipitate formed is .The bright green ... more
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; The balanced chemical equation for reaction is ... more
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The balanced equation for the reaction between ... more
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Solubility in water and reaction with NO can be ... more
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No change. ; The oxidation number of an atom is ... more
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In acetylide ion, the bond order is observed as ... more
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In these ions, phosphorus has and ... more
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Astatine which is a solid and has boiling and ... more
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Yes.Because the time required to break a C-Dbond ... more
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Hydrofluoric acid is used to frost light bulbs.The... more
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Nitrogen is inert at room temperature, whereas ... more
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Ammonium nitrate can be synthesized from ammonia ... more
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; Conversion Calculating and . ; Calculate ... more
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The calculated value of density of gaseous HF is .... more
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; The reaction of phosphorus with oxygen is shown... more