Q3b 3. The elements of Period 3 of the P.T are: sodium, magnesium, aluminium, silicon,phosphorus, sulphur, chlorine and argon.a) From among these elements give the formula of a:i) Solid ionic chlorideb) The oxides of these elements exist in three different structural forms. For eacn hanstructural form give the formula of an oxide.c) From among the oxides of these elementsi) Choose an oxide and show how it behaves as a strong acid.ii) Choose an oxide and show how it behaves as a strong base.D(i) which of the oxides is amphoteric?ii) Write balanced equations to show its amphoteric character.the oxides of the elements of Period 3 vary acrossii) Solid covalent chlorideiii) Liquid chloride4. This question concerns the hydrides of a range of elementsa) In each of the following cases, give the name of a hydride and write an equation for thereaction described!i) a hydride, which hydroiyses rapidly and extensively in cold water.ii) A hydride which is spontaneously flammabie in airii) A hydride which on electrolysis in the molten state gives hydrogen at the anodejv) a hydride which in water gives a dibasic acidv) A hydride which in water gives a weak alkali• vi) A hydride which can act as a ligand with d-block metal ionsb) Give the names of two hydrides which combine with each other to form an addition.compound and write an equation for the reaction.c) Suggest an explanation for the ability of carbon to form long chain hydrocarbons.d) The enthalpy of combustion of methane is highly exothermic. To what do you attribute tstability of methane in air?d) Suggest a reason for the large difference in boiling points of methane and water.5. a) Explain the term periodic trend when applied to trends in the periodic table.b) Explain why atomic radius decreases across period 2 from lithium to fluorine.c) The table below shows the melting temperatures of the period 3 elements.CIArAlSi84Mg923Na392172Element9331680 317371Tm /KExplain the following in terms of structure and bondingi)ii)ii)iv)Magnesium has a higher melting temperature than sodiumSilicon has a very high melting temperatureSulphur has a higher melting temperature than phosphorusArgon has the lowest melting temperature in period 3.

The elements of period 3 are Na, Mg, Al, Si, P, S, Cl and Ar, the structure of the elements is…

of the elements of PeriIod 3. The elements of Period 3 of the P.T are: sodium, magnesium, aluminium, silicon, phosphorus, sulphur, chlorine and argon. a) From among these elements give the formula of a: i) Solid ionic chloride b) The oxides of these elements exist in three different structural forms. For eacn hamd structural form give the formula of an oxide. c) From among the oxides of these elements i) Choose an oxide and show how it behaves as a strong acid. ii) Choose an oxide and show how it behaves as a strong base. D(i) which of the oxides is amphoteric? ii) Write balanced equations to shon ito ii) Solid covalent chloride iii) Liquid chloride

of the elements of PeriIod 3. The elements of Period 3 of the P.T are: sodium, magnesium, aluminium, silicon, phosphorus, sulphur, chlorine and argon. a) From among these elements give the formula of a: i) Solid ionic chloride b) The oxides of these elements exist in three different structural forms. For eacn hamd structural form give the formula of an oxide. c) From among the oxides of these elements i) Choose an oxide and show how it behaves as a strong acid. ii) Choose an oxide and show how it behaves as a strong base. D(i) which of the oxides is amphoteric? ii) Write balanced equations to shon ito ii) Solid covalent chloride iii) Liquid chloride

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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