Chemistry

Chapter 3: Atoms and molecules * Refer the no(prenominal)es given to you in class as well as your NCERT textbook * Laws of chemical combinations- explanation with ex angstrom unitle-section 3.1 * natural law of saving of push-down stack-sec 3.1.1 * law of definite proportions-sec 3.1.2 * Atomic symbols- set put up 3.1(pg. no. 34) and bow 4.1 (pg. no. 51) * amu-definition-sec 3.2.2 (pg. no. 35), put false 3.2 (pg. no. 35) * Difference among molecule of an element and molecule of a compound with ex antiophthalmic factorles-sec3.3, Atomicity -Table 3.3(pg. no. 36) * Determination of atomic ratio from mass ratio Table 3.4(pg. no. 36) * Water(mass ratio of total heat & adenosine monophosphate; oxygen is 1:8) * Ammonia (mass ratio of nitrogen & international ampere; henry is 14:3) * Carbon dioxide (mass ratio of cytosine & oxygen is 3:8) * Carbon monoxide (mass ratio of carbon & oxygen is 3:4) * Methane ( mass ratio of carbon & hydrogen 3:1) * rendering of ion, cation, anion, polyatomic anion, polyatomic cation with examples-section3.3.3(Table 3.6, pg, no. 37) * valency of elements- (Table 3.6, pg, no. 37), Table 4.1 (pg. no.

51) * Chemical formulae- Hydrochloric acid (HCl), nitric acid(HNO3), sulphuric acid(H2SO4), phosphoric acid(H3PO4), ammonia(NH3), carbon dioxide(CO2), carbon monoxide(CO), methane(CH4), limewater(calcium hydroxide)-Ca(OH)2, limestone or stain (calcium carbonate)-CaCO3, Quicklime ( calcium oxide)-CaO, atomic tour 11 nitrateNaNO3, biting soda( sodium hydroxide)-NaOH, Caust ic potash (potassium hydroxide)-KOH, baking ! soda( sodium hydrogen carbonate)-NaHCO3, potassium nitrate-(KNO3), Ammonia-(NH3), Ammonium chloride(NH4Cl), Ammonium sulphate(NH4)2SO4, Ammonium carbonate(NH4)2CO3, atomic number 13 nitride(AlN), Aluminium sulphate-Al2(SO4)3, Aluminium oxide-Al2O3, atomic number 11 sulphate-Na2SO4, Sodium oxide-Na2O, Sodium carbonate-Na2CO3, carbonaceous acid(H2CO3) * Steps to derive chemical formulae-All examples given in NCERT * pen the symbols of the elements * Write valency below their...If you want to annoy a full essay, order it on our website: OrderCustomPaper.com

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