# Physical Sciences Grade 12 P2 Eastern Cape Mock 2021 QP > Grade 12 Physical Sciences Paper 2 question paper from the Eastern Cape Mock Exam 2021, 24 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/physical-sciences-p2-nov-2020-xhosa-d/bf853298-c89a-4b10-8558-5dd9df403690 - Updated: 2026-09-27 - Subject: Physical Sciences - Grade: Grade 12 - Document type: Question paper - Year: 2021 - Exam period: Eastern Cape Mock Exam - Paper: 2 - Curriculum: CAPS - Pages: 24 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 12](https://www.hlayiso.com/library/grade-12) › [Physical Sciences](https://www.hlayiso.com/library/grade-12/physical-sciences) › [Physical Sciences Grade 12 P2 Eastern Cape Mock 2021 QP](https://www.hlayiso.com/library/physical-sciences-p2-nov-2020-xhosa-d/bf853298-c89a-4b10-8558-5dd9df403690) ## About this document Physical Sciences · Grade 12 · Eastern Cape Mock Exam · 2021. Question paper, 24 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE IBANGA LESHUMI ELINAMBINI INZULULWAZI: IKHEMISTRI (P2) PREPARATORY 2021 AMANQAKU: 150 IXESHA: 3 iiyure *PSXHO2* Eli phepha loviwo linamaphepha ali 16 kunye needatha shithi ezi 4.   Ushicilelo luselugcinweni Nceda utyhile ### Page 2 Downloaded from hlayiso.com Inzululwazi/P2 2. DBE/Novemba 2020 SC/NSC IMIQATHANGO/IMIYALELO NOLWAZI 1. Bhala inombolo yakho yovavanyo neziko lokubhalela kwizithuba ezilungele oko KWINCWADI YEEMPENDULO. 2. Eli phepha liqulethe imibuzo ELISHUMI. Phendula YONKE imibuzo kweli phepha KWINCWADI YEEMPENDULO. 3. Phendula umbuzo NGAMNYE kwiphepha ELITSHA KWINCWADI YAKHO YEEMPENDULO. 4. Nambarisha iimpendulo zakho ngokuthe ngqo ngalendlela imibuzo yakho inambarishwe ngayo. 5. Shiya umgca OMNYE phakathi kwemibuzwana umzekelo: UMBUZWANA 2.1 no MBUZWANA 2.2. 6. Uvumelekile ukusebenzisa ikhaltyhuleytha engafakwanga lwazi. 7. Ungazisebenzisa izixhobo zeMathematika ezifanelekileyo. 8. Bonakalisa ZONKE iifomyula nee sabstityushini kwizibalo zakho ZONKE. 9. Shiya impendulo yakho YOKUGQIBELA yamanani kubuncinane bee desimali pleysi EZIMBINI. 10. Xhasa okanye unike iingxoxwana apho zifuneka khona. 11. Uyacetyiswa ukuba usebenzise IIDATHA SHITHI ezikweli phepha. 12. Bhala ngokucocekileyo nangokucacileyo. Ushicilelo lugciniwe Nceda utyhile ### Page 3 Downloaded from hlayiso.com Inzululwazi/P2 3. DBE/Novemba 2020 SC/NSC UMBUZO 1: UXUBO-KHETHO MIBUZO Unikwe iimpendulo ezine ezahlukeneyo kule mibuzo ilandelayo. Khetha impendulo echanekileyo uze ubhale kuphela unobumba (A–D) ecaleni kwenombolo yombuzo (1.1–1.10) KWINCWADI YAKHO YEMPENDULO, umzekelo: 1.11 E. 1.1 Yeyiphi eNYE eyi ALKHEYINI kwezi zilandelayo? A C6H8 B C6H10 C C6H12 D C6H14 (2) 1.2 Ii Esta zifonyishwa nge reaction ephakathi kwe oganikhi khompawundi (organic compounds) ezimbini, u X no Y, ezikwi fankshinal gruphu ezahlukeneyo. iifankshinal gruphu zezi khompawundi nazi : Ukhompawundi X Ukhompawundi Y A Hydroxyl gruphu Carboxyl gruphu B Hydroxyl gruphu Carbonyl gruphu C Hydroxide ion Carboxyl gruphu D Hydroxide ion Carbonyl gruphu (2) 1.3 Xa ibhuyutheyni iphantsi kwamaqondo obushushu (thempritsha) aphezulu no xinzelelo (presha) oluphezulu, le rhiekshini ilandelayo iyenzeka: Bhuyutheyini ื M i t h e y i n i  + Y Yeyiphi eNYE kwezi zilandelayo ebonakalisa u Y? A CHCCH3 B CH2CHCH3 C CH3CH2CH3 D CH3CHCHCH3 (2) Ushicilelo lugciniwe Nceda utyhile ### Page 4 Downloaded from hlayiso.com Inzululwazi/P2 4. DBE/Novemba 2020 SC/NSC 1.4 Isolushini ye haydroklorikhi asidi, HCℓ(aq), ene khonsentreyshini ka 1 mol∙dm-3 yongezwe ku MGUBO OMNINZI (eksesi phawuda) ye magneziyam kwiqondo lobushushu elingu 25 °C. Ukhevu I ongezantsi ubonakalisa ivolumu yehaydrojini gesi evelisiweyo (eprodyusiweyo) kwi rhiekshini. Ukhevu II ufumaneke kwiikhondishini ezahlukeneneyo kusetyenziswe IVOLUMU ENYE (ENGATSHINTSHWANGA) yesolushini haydroklorik asidi. Ivolumu ye haydrojini gesi eveziweyo/ II eprodyusiweyo Ixesha Yeyiphi eNYE kwezi zilandelayo ebonakalisa iikhondishini ezisetyenzisiweyo ukufumana ukhevu II? IQONDO IKHONSENTRE IQONDO LOQHEKEKO YSHINI YE LOBUSUSHU (steyithi sedivishini) lwe ASIDI (THEMPRITSHA) Mg (mol·dm-3) (°C) A Irhibhoni 0,5 25 B Irhibhoni 2 25 C Umgubo (iphawuda) 1 20 D Umgubo (iphawuda) 1 30 (2) 1.5 Yeyiphi eNYE kwezi rhiekshini zilandelayo eyakuthi xa ikwi ekhwilibriyam ibene YILDI ephezulu xa IVOLUMU yekhonteyina yonyusiwe kwiqondo lobushushu lingatshintshi? A N2O4(g) ֖2NO2(g) B H2(g) + I2(g) ֖2HI(g) C N2(g) + 3H2(g) ֖ 2NH3(g) D 2SO2(g) + O2(g) ֖ 2SO3(g) (2) Ushicilelo lugciniwe Nceda utyhile ### Page 5 Downloaded from hlayiso.com Inzululwazi/P2 5. DBE/Novemba 2020 SC/NSC 1.6 SESIPHI isiqwengana kwezi zilandeyo ESINYANISILEYO nge EKZOTHEMIKHI rhiekshini? A I eneji eninzi iyangeniswa kunokuba ikhululwa. B I eneji eninzi iyakhululwa kunokuba ingeniswa. C Ihithi (ΔH) ye rhiekshin iphozithivi. D I eneji yee prowudakthi inkulu kune eneji yee rhiekten (2) 1.7 Qwalasela le ikhweyshini ingezantsi. H3PO4(aq) + H2O(ℓ) ⇌ H3O+(aq) + H2PO (aq) 4 Yeyiphi eNYE kwezi zilandelayo esisibini (pair) sekhonjugeythi- bheysi? A H3O+(aq) kunye ne H2O(ℓ) B H3PO4(aq) kunye ne H2O(ℓ) C H3PO4(aq) kunye ne H3O+(aq) D H3O+(aq) kunye ne H4 2PO (aq) (2) 1.8 Qwalasela le ikhweyshini ibhalansiweyo ingezantsi: 2Cr2+(aq) + Sn4+(aq) → 2Cr3+(aq) + Sn2+(aq) I OXIDISING AGENT yi: A Cr2+(aq) B Cr3+(aq) C Sn2+(aq) D Sn4+(aq) (2) Ushicilelo lugciniwe Nceda utyhile ### Page 6 Downloaded from hlayiso.com Inzululwazi/P2 6. DBE/Novemba 2020 SC/NSC 1.9 I elektrokhemikhali seli isetwe kwiistandadi khondishini. Iseli noteyshini yeseli inikiwe ngezantsi. Mg(s) | Mg2+(aq) || Pb2+(aq) | Pb(s) Iseli ikonekthwe kwi sekethi. Yeyiphi eNYE kwezi grafu zilandelayo ENGCONO kunazo zonke ukubonakalisa iikhonseyntreyshini zee elektrolaythi emva kwexesha elide? A B Ikhonsentreyshini (mol·dm-3) sent (mol·dm-3) Ikhonsentreyshini mol· nsen Pb 2+(aq ) Pb 2+( aq ) 1 1 Mg 2+( aq ) Mg 2+( aq ) Ixesha (s) Ixesha (s) C D Ikhonsentreyshini (mol·dm-3) Mg 2+( aq ) Mg 2+(aq ) 1 1 Pb 2+( aq ) Pb 2+(aq ) Ixesha (s) Ixesha (s) 1.10 Iingxowa ezimbini ezingama 50 kg, zinee fethelayiza (imigquba) uR no S ngokulandelelana kwazo, zileybhelwe ngoluhlobo lulandelayo: Fethelayza (umgquba) R: 3 : 1 : 5 (20) Fethelayza (umgquba) S: 1 : 2 : 6 (20) Khetha ifethelayza/iifethelayza (umgquba/imigquba) eyiyeyona ikulungeleyo ukukhulisa amagqabi kunye neengcambu ngokusempilweini. UKUKHULA KWAMAGQABI UKUKHULA KWENGCAMBU A R R B S R C R S D S S (2) [20] Ushicilelo lugciniwe Nceda utyhile ### Page 7 Downloaded from hlayiso.com Inzululwazi/P2 7. DBE/Novemba 2020 SC/NSC UMBUZO 2 (Qala kwiphepha elitsha.) Oonobumba A ukuya ku E kwitheybhile engezantsi babonisa ii oganikhi khompawundi ezintlanu. H Br CH3 CH2CH3 A H C C C C H B CxHy H H CH3 CH2CH3 H H H O H C H C C C C C H D CH3(CH2)2CH(OH)CH2CH3 H H H H E CH3CH2CH2CH2CH2CH2CHCH2 2.1 Bhala phantsi UNOBUMBA obanakalisa IKHOMPAWUNDI NGANYE kwezi zilandelayo: 2.1.1 Ikhethowni (1) 2.1.2 Ihaydrokhabhoni (1) 2.1.3 I alkhini (1) 2.2 Bhala phantsi: 2.2.1 Igama lika khompawundi A ngokwe IUPAC (3) 2.2.2 ISTRUCTURAL FOMYULA sika khompawundi D (2) 2.2.3 Igama ngokwe IUPAC le STRAIGHT FUNCTIONAL ISOMER ka khompawundi C (2) 2.3 Ukhompawundi B yikhompawundi enetsheyina elenza le rhiekshin ilandelayo e ekzothemikhi: 2CxHy + 25O2(g) → 16CO2(g) + 18H2O(g) 2.3.1 Ngaphandle kokuba ekzothemikhi, loluphi uhlobo lwerhiekshin olubonakaliswe ngasentla? (1) 2.3.2 Fumana IMOLETYHULA FOMYULA ka khompawundi B. (2) Le rhiekshin ingentla yenzeka kwi khonteyina evaliweyo phantsi kweqondo lobushushu (thempritsha) elingatshintshiyo elingaphezulu kuno 100 °C kunye ne presha engatshintshiyo. 2.3.3 Bala IVOLUMU IYONKE ye gesi eyenzekileyo kwi khonteyina xa u 50 cm3 we CxHy erhiektha ngokupheleleyo ne oksijini. (3) [16] Ushicilelo lugciniwe Nceda utyhile ### Page 8 Downloaded from hlayiso.com Inzululwazi/P2 8. DBE/Novemba 2020 SC/NSC UMBUZO 3 (Qala kwiphepha elitsha.) Iikhompawundi A, B no C zisetyenzisiwe ukuphanda nzulu ifektha ephembelela amaqondo okubila (boiling point) ee oganikhi khompawundi. Iziphumo zophando-nzulu zinikiwe kule theybhile ingezantsi. IKHOMPAWUNDI IQONDO LOKUBILA (BOILING POINT) (°C) A Butan-1-ol 117 B Butan-2-ol 100 C 2-methylpropan-2-ol 82 3.1 Ingaba luphando olungenamkhethe olu? Khetha ku EWE no HAYI. (1) 3.2 Nika isizathu sempendulo oyinike ku MBUZO 3.1. (1) 3.3 Chaza ngokupheleleyo umahluko kumaqondo okubila kakhompawundi B no C. (3) 3.4 Chaza eli gama lithi positional isomer. (2) 3.5 Ukusuka kukhompawundi A, B no C, khetha unobumba/oonobumba ababonakalisa ikhompawundi NGANYE yezi zilandelayo: 3.5.1 Iipozishinal ayzoma (1) 3.5.2 I theshiyari alkhohol Nika isizathu sempendulo yakho. (2) 3.6 Le grafu ingezantsi ibonakalisa unxibelelwano phakathi kwe veypha presha ne qondo lobushushu (thempritsha) lika khompawundi A (butan-1-ol). Iveyipha presha (kPa) X 117 Iqondo lobushushu (°C) 3.6.1 Bhala phantsi ubungakanani buka X. (1) 3.6.2 Zoba kwakhona le grafu ingentla KWINCWADI YEMPENDULO. Kwi seti enye ye eksis, zoba ikhevu kakhompawundi C eyakufunyanwa. Lebhelisha ngokucacileyo iikhevu A no C. Bonakalisa ngokucacileyo Iqondo lokubila elihambelana no khompawundi C kwi grafu. (2) [13] Ushicilelo lugciniwe Nceda utyhile ### Page 9 Downloaded from hlayiso.com Inzululwazi/P2 9. DBE/Novemba 2020 SC/NSC UMBUZO 4 (Qala kwiphepha elitsha.) 4.1 Umzobo oqukuqelayo (flowu dayagram) ongezantsi ubonakalisa iintlobo zee oganikhi reactions kusetyenziswa u propane njenge sithako (starting reactant) sokuqala. U R, uT kunye no U babonakalisa iintlobo ezohlukeneyo zee oganikhi khompawundi. U khompawundi T yi KHABHOKZILIKHI ASIDI ye n a u U yi FUNCTIONAL AYZOMA ka pentanowikh asidi. Reaction 1 Reaction 2 iPropane R iPropan - 1 -ol Br 2 Dilute NaOH T Reaction 3 U Bhala phantsi IGAMA lohlobo lwe reaction ebonakaliswa ngu: 4.1.1 Reaction 1 (1) 4.1.2 Reaction 2 (1) Qwalasela reaction 1 no reaction 2. 4.1.3 Bhala phantsi igama lika khompawundi R ngokwe IUPAC. (2) U Reaction 3 wenzeka xa kufakwe ikhathalisti nobushushu. Bhala phantsi: 4.1.4 IGAMA okanye IFOMYULA ye khathalisti (1) 4.1.5 Igama lika khompawundi T ngokwe IUPAC (2) 4.1.6 ISTRUCTURAL FOMYULA sika khompawundi U (2) Ushicilelo lugciniwe Nceda utyhile ### Page 10 Downloaded from hlayiso.com Inzululwazi/P2 10. DBE/Novemba 2020 SC/NSC 4.2 Igcisa lase labholatri lifuna ukwenza I bhuyuthi-2-ini lisebenzisa I bhuyuthi -1-ini njenge sithako (rhieyijenti) sokuqala njengoko kubonakilisiwe ngezantsi. H H H C C C C H But-2-ene H H H H La machiza (khemikhali) alandelayo akhona elabhoratri: iH2SO4 iH2O iNaOH engangxengwanga engangxengwanga Khetha amachiza afunekayo ukuyila olu lungiselelo lungentla kolu ludwe lunikwe ngentla. Ngebakala NGALINYE lokulungisela, bhala i ikhweyshini ebhalansayo, usebenzisa IZITRAKTSHARAL FOMYULA zazo zonke ii oganikhi khompawundi. Bonakalisa onke amachiza afunekayo kwibakala ngalinye. (6) [15] UMBUZO 5 (Qala kwiphepha elitsha.) 5.1 Phonononga le distribuyushini khevu ka Maxwell-Boltzmann ingezantsi eyenzelwe irhiekshin ethile. Q P U P no Q zileyibheli ze eksisi. Yintoni le kwantithi imelwe ngu: 5.1.1 P (1) 5.1.2 Q (1) 5.2 Umgca u R ubonakalisa eyona eneji incinane efunekayo ukuze irhiekshin yenzeke. 5.2.1 Bhala phantsi igama lesi siqwengana sikrwelelwe umgca ngaphantsi. (1) 5.2.2 Ingaba iyakuchaphazeleka njani le eriya irhixiziweyo kwigrafu xa kongezwe ikhathalisti? Khetha ku IYENYUKA, IYEHLA okanye IHLALA INJALO. (1) 5.3 Sebenzisa ikholishin thiyori ukucacisa ukuba ikhathalisti iyichaphazela njani irheyithi ye rhiekshin. (4) Ushicilelo lugciniwe Nceda utyhile ### Page 11 Downloaded from hlayiso.com Inzululwazi/P2 11. DBE/Novemba 2020 SC/NSC 5.4 Irhiekshin pakathi ko MGUBO we khalsiyam khabhoneyithi ne CaCO3(s), ne haydroklorikhi asidi EGQITHISILEYO, HCℓ(aq), isetyenzisiwe ukuphanda nzulu nge rhiekshin rheyithi ku 25 °C. I ikhweyishin ebhalansayo yale rhiekshin ithi: CaCO3(s) + 2HCℓ(aq) → CaCℓ2(aq) + H2O(ℓ) + CO2(g) Ii eksperiment eziliqela zenziwe kusetyenziswa imesi enye ye khalsiyam khabhoneyithi ENGACOCEKANGA kunye nee khonseyntreyshini zokuqala ezohlukeneyo ze hayidroklrikhi asidi engxengiweyo. Igrafu engezantsi ibonakalisa iziphumo ezifunyenweyo. Thatha ngokuba izingcolisi azirhiekthi. 60 ● ● I Avareyji rheythi yokuvelisa i CO2 50 ● 40 ● 30 (cm3∙min-1) ● 20 ● 10 ● 0 0 0,005 0,01 0,015 0,02 0,025 0,03 0,035 Ikhonseytreyshini yokuqala ka HCℓ (mol∙dm-3) Ngolu phando, bhala phantsi i: 5.4.1 Ivariyebli ekhontroliweyo (1) 5.4.2 Isigqibo (conclusion) (2) I CaCO3(s) kwi 6 g ye sampula engacocekanga irhiektha ngokupheleleyo ne 0,03 mol൉dm-3 HCℓ(aq) kwimizuzu engama 26. 5.4.3 Sebenzisa ulwazi olukwi grafu ukubala ipesenteyiji phiyurithi ye calcium carbornate. Thatha ngokuba imowula gesi volumu ku 25 °C ngu 24 000 cm3. (6) [17] Ushicilelo lugciniwe Nceda utyhile ### Page 12 Downloaded from hlayiso.com Inzululwazi/P2 12. DBE/Novemba 2020 SC/NSC UMBUZO 6 (Qala kwiphepha elitsha.) Umophu, H2O(g), urhiektha ne khabhon, C(s) eshushu , ku 1 000 °C ngokwale ikhweyshin ibhalansayo: 2H2O(g) + C(s) ֖ 2H2(g) + CO2(g) Ekuqaleni, u 36 g womophu nomyinge othile we khabhon babekwe kwi khonteyna engu 2 dm3 evingciweyo baze bavunyelwa ukuba barhiekthe. Kwi ekhwilibriyam kufunyaniswe okokuba umyinge we khabon utshintshe ngo 0,225 mol. 6.1 Chaza igama udynamic equilibrium. (2) 6.2 Bala I ekhwilibriyam khonstenti, Kc, yereaction ku 1 000 °C. (8) 6.3 Igrafu ibonisa ukuba zitshintsha njani irheyithi yerhiekshin eya phambili neya emva ngokuhamba kwexesha. irhiekshin eya phambili Rate irhiekshin eya emva t0 t1 t2 t3 Ixesha 6.3.1 Nika isizathu sokuba kutheni irheythi ye rhiekshini eya phambili incipha phakathi ko t0 no t1. (1) 6.3.2 Kwenziwe oluphi utshintsho kumxube okwi equilibrium ku t3? (1) Kwixesha elingu t2, Iqondo lobushushu le sistimu lonyusiwe. 6.3.3 Ingaba irhiekshin eya phambili I EXOTHERMIC okanye I ENDOTHERMIC? (1) 6.3.4 Ngokubhekisele kumgaqo ka Le Chatelier cacisa impedulo KUMBUZO 6.3.3. (2) [15] Ushicilelo lugciniwe Nceda utyhile ### Page 13 Downloaded from hlayiso.com Inzululwazi/P2 13. DBE/Novemba 2020 SC/NSC UMBUZO 7 (Qala kwiphepha elitsha.) Ibhikha ezimbini, u A no B, baqulethe iibheyisi ezi strongo. Ubhikha A: 500 cm3 ye barium hydroxide, Ba(OH)2(aq) ene khonseyntreyshini engaziwayo engu X Ubhikha B: 400 cm3 ye potassium hydroxide, KOH(aq) enekhonsentreyshini engu 0,1 mol·dm-3 7.1 Chaza ibase ngokwe thiyori ka Arrhenius. (2) 7.2 Bala inombolo yee mowuli zehaydroksayidi ayoni ( OH) kubhikha B. (2) 7.3 Okuqulethwe kwi bhikha(beaker) A no B kudityaniswe konke kubhikha C. Isolushin ku bhikha C ine pH engu 13. Thatha ngokuba iivolumu ziyadibaniseka kwaye Iqondo lobushushu le solushini ngu 25 °C. Ba(OH)2(aq) 0,1 mol·dm-3 3 500 cm 400 cm3 KOH(aq) ipH = 13 7.3.1 Bala ikhonseyntreyshini , u X, ye Ba(OH)2 kubhikha A. (8) Isolushini ku bhikha C ithayitreythwe nge ethanowikhi asidi. Kufunyaniswe ukuba i15 cm3 ye solushini inyutralayza u 30 cm3 we asidi. i ikhweyshin ye reaction ebhalansiweyo ithi: CH3COOH(aq) +OH (aq) →CH3COO (aq) + H2O(ℓ) 7.3.2 Ingaba I ethanoic acid , CH3COOH(aq), yi acid e WEAK okanye ESTRONG? Nika isizathu sempendulo yakho. (2) 7.3.3 Bala ikhonseyntreyshini ye ethanoic acid. (4) [18] Ushicilelo lugciniwe Nceda utyhile ### Page 14 Downloaded from hlayiso.com Inzululwazi/P2 14. DBE/Novemba 2020 SC/NSC UMBUZO 8 (Qala kwiphepha elitsha.) Igalvanikhi seli kwiimeko eziqingqiweyo (kwiistandadi khondishini) ibonakaliswa ngale seli noteyshini ingezantsi. U X no Y zii elektrowudi ezingaziwayo. X | Zn2+(aq) || Fe3+(aq), Fe2+(aq) | Y 8.1 Bhala phantsi IGAMA okanye IFOMYULA ka: 8.1.1 Elektrowudi X (1) 8.1.2 Elektrowudi Y (1) 8.1.3 oksidayzing eyijent (1) 8.2 Bhala phantsi: 8.2.1 Umsebenzi UBEMNYE ka elektrowudi Y (1) 8.2.2 Ihafu yerhiekshini eyenzeka ku elektrowudi Y (2) 8.2.3 Inethi (epheleleyo) ikhweyshini yeseli rhiekshini eyenzeka kule seli. (3) 8.3 Bala i emf yokuqala yale seli. (4) 8.4 Ingaba i emf yokuqala iyakuchaphazeleka njani xa ikhonseytreyshin ye ayoni zika ayon (III) itshintshwe yangu 0,6 mol∙dm-3? Khetha ku IYENYUKA, IYEHLA okanye IHLALA INJALO. (1) [14] Ushicilelo lugciniwe Nceda utyhile ### Page 15 Downloaded from hlayiso.com Inzululwazi/P2 15. DBE/Novemba 2020 SC/NSC UMBUZO 9 (Qala kwiphepha elitsha.) Lo mzobo ushwankathelweyo ungezantsi ubonisa I elektrokhemikhali seli esentyenziselwe ukucoca ikopolo. Ikopolo engacocekanga iqulethe imiyinge emincinci ye silivere (Ag) kunye ne zinki (Zn) njenge zingcolisi ekuphela kwazo. Umthombo(isosi) we DC Ikopolo engcolileyo I electrolayithi 9.1 Chaza igama elingu elektrolisis. (2) 9.2 Bhala phantsi IGAMA okanye IFOMYULA yee ayoni EZIMBINI ezipozithivi ezikhoyo kwi elektrolayithi. (2) 9.3 Bhala phantsi I hafu yerhiekshin eyenzeka kwi khathowudi. (2) 9.4 Sebenzisa itheybhile yee Standadi Rhidakshini Potenshiyali ucacise ukuba kutheni ikopolo ecociweyo INGAZUKUQULATHA zinki. (3) 9.5 Bala imesi ephezulu kunazo zonke ka Cu eyenzekileyo ukuba iimowuli eziyi 0,6 zee elektroni zidlulisiwe( transferiwe). (3) [12] Ushicilelo lugciniwe Nceda utyhile ### Page 16 Downloaded from hlayiso.com Inzululwazi/P2 16. DBE/Novemba 2020 SC/NSC UMBUZO 10 (Qala kwiphepha elitsha.) 10.1 Umzobo oqukuqelayo(iflowu dayagram) ubonakalisa iprosesi ezichaphazelekayo ekuvelisweni komgquba (fethelayiza) C. iGesi A iHaber prosesi H2SO4(aq) UKhompawundi B Umgquba C H2(g) Bhala phantsi IGAMA okanye IFOMYULA: 10.1.1 kaGesi A (1) 10.1.2 yekhathalisti esetyenziswe kwi Haber prosesi (1) 10.1.3 kakhompawundi B (1) Bhala phantsi: 10.1.4 Igama le prosesi esetyenzisiweyo ukuvelisa igesi A (1) 10.1.5 I ikhweyshin ebhalansayo yokuvelisa umgquba C (3) 10.2 Ingxowa engama 40 kg yomgquba iqulethe i65% yefila. Imesi yeenyutriyenti engxoweni ibonakaliswe kwitheybhile engezantsi. NUTRIENTS MASS (kg) iNitrogen x Phosphorus 2x iPotassium 5 Bala i NPK rheysho yomgquba. (3) [10] EWONKE: 150 Ushicilelo lugciniwe Nceda utyhile ### Page 17 Downloaded from hlayiso.com Inzululwazi /P2 1. DBE/Novemba 2020 SC/NSC IDATHA YE NZULULWAZI IBANGA LE 12 IPHEPHA 2 (IKHEMISTRI) TABLE 1: PHYSICAL CONSTANTS/ITHEYBHILE 1: I KHONSTENTI EZIFIZIKHALI NAME/IGAMA SYMBOL/ISIMBOLI VALUE/IVELU Standard pressure pT 1,013 x 105 Pa IStandadi presha(ipresha ekwibakala elifanayo) Molar gas volume at STP Vm 22,4 dm3∙mol-1 Imola gesi volumu eku STP Standard temperature iStandadi tempritsha(Iqondo T T 273 K lobushushu elikwibakala elifanayo) Charge on electron e -1,6 x 10-19 C Itshaji ye elektroni Avogadro's constant NA 6,02 x 1023 mol-1 Ikhonstenti ka Avogadro TABLE 2: FORMULAE/ ITHEYBHILE 2: I I FOMYULA m N n n M NA n m V c or/of c n V MV Vm cava na pH = -log[H3O+] cbvb nb Kw = [H3O+][OH-] = 1 x 10-14 at/by 298 K Eθ Eθ  Eθ / Eθ Eθ  Eθ cell cathode anode seli khathowudi anowudi or/okanye Eθ Eθ  Eθ / Eθ Eθ  Eθ cell reduction oxidation seli redakshini oksideyshini or/okanye Eθ Eθ  Eθ / Eθ Eθ  Eθ cell oxidisingagent reducingagent seli I oksidayizingi eyijenti iredyusingi eyijent Ushicilelo lugciniwe Nceda utyhile ### Page 18 Downloaded from hlayiso.com ### Page 19 nNovemba 2. Inzululwazi /P2 SC/NSC DBE/Novemba 2020 TABLE 3: THE PERIODIC TABLE OF ELEMENTS TABEL 3: DIE PERIODIEKE TABEL VAN ELEMENTE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 (I) (II) Atoomgetal (III) (IV) (V) (VI) (VII) (VIII) KEY/ SLEUTEL Atomic number 1 2 H He 2,1 29 1 4 Elektronegatiwiteit Simbool 3 4 Cu 5 6 7 8 9 10 Electronegativity 1,9 Symbol Li Be 63,5 B C N O F Ne 1,0 1,5 2,0 2,5 3,0 3,5 4,0 7 9 11 12 14 16 19 20 11 12 13 14 15 16 17 18 Na Mg Benaderde relatiewe atoommassa Aℓ Si P S Cℓ Ar 0,9 1,2 Approximate relative atomic mass 1,5 1,8 2,1 2,5 3,0 23 24 27 28 31 32 35,5 40 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 0,8 1,0 1,3 1,5 1,6 1,6 1,5 1,8 1,8 1,8 1,9 1,6 1,6 1,8 2,0 2,4 2,8 39 40 45 48 51 52 55 56 59 59 63,5 65 70 73 75 79 80 84 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe 0,8 1,0 1,2 1,4 1,8 1,9 2,2 2,2 2,2 1,9 1,7 1,7 1,8 1,9 2,1 2,5 86 88 89 91 92 96 101 103 106 108 112 115 119 122 128 127 131 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tℓ Pb Bi Po At Rn 0,7 133 0,9137 139 1,6 179 181 184 186 190 192 195 197 201 1,8204 1,8 207 1,9 209 2,0 2,5 87 88 89 Fr Ra Ac 0,7 0,9226 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Downloaded from hlayiso.com 140 141 144 150 152 157 159 163 165 167 169 173 175 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 232 238 Ushicilelo lugciniwe Nceda utyhile ### Page 20 Downloaded from hlayiso.com Text truncated here. 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