Proseschemie NCV Level 3 — Document

November 2019 — NCV Level 3 — Proseschemie

NCV Level 3 2019 NCV Engineering

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🎯 100 marks ⏱️ 3h 📄 6 pages 📝 44 items found

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Q1— Section header —

1.1

1.1.1Dui die persentasie kalium in die sak aan. (1\

1.1.2Noem TWEE funksies van stikstof in plante. (2\

1.1.3Noem TWEE vorms van an organiese stikstofmisstof. (2\

1.1.4Verduidelik kortliks waarom fosformisstof in die grond en nie op plante se blare toegedien word nie. (2\

1.1.5

1.2Skryf die chemiese for mule vir die volgende neer:

1.2.1Kaliumsulfaat

1.2.2Monoammoniumfosfaat

1.2.3

1.3Noem die VYF stadia in die produksie van swaelsuur in volgorde. (5\

1.4Voltooi en balanseer die volgende vergelyking: NO (g\ O(

Q2— Section header —

2.1Pas 'n natriumverbinding uit die lys wat hier gegee word by 'n beskrywing wat daarna vo lg. Skryf slegs die woord of term langs die vraagnommer (2.1.1

2.1.5\ die ANTWOORDBOEK neer. NaC Na SO NaOH; Na

2.1.1Staan ook as wassoda bekend.

2.1.2Een van die eerste gebruike daarvan was as lakseermiddel.

2.1.3Dit staan algemeen as seepsoda bekend.

2.1.4Dit word in die voedsel en drankbedryf as bakpoeier gebruik.

2.1

2.2Suid Afrika is 'n ontwikkelende land met 'n groeiende vraag na sement in die konstruksiebedryf.

2.2.1Noem TWEE tipes rots wat as grondstof in die produksie van sement gebruik word. (2\

2.2.2

2.2.3Beskryf wat slaksement is. (3\

2.2.4Gee VYF voordele daarvan om slaksement eer der as normale sement te gebruik. (5\

2.3Voltooi die volgende prosesvloeidiagram vir kalsiumkarbonaatproduksie deur die antwoorde langs die letters (A I\die ANTWOORDBOEK te skryf. (9\ [25] en-US (6050433\25

Q3— Section header —

Q4— Section header —

4.1Skoonmaakmiddels is meer doeltreffend as seep veral in harde wate r.

4.1.1Definieer die term harde water (2\

4.1.2Skryf kort aantekeninge oor die werking van opaktiewe middels. (5\

4.1.3Noem TWEE voorbeelde van amfoteriese opaktiewe middels. (2\

4.2Wat is vullers (2\

4.3Noem DRIE belangr ik grondstowwe wat in die produksie van seep gebruik word. (3\

4.4Noem SES stappe in die aaneenlopende proses van seepproduksie in volgorde. (6\ [20]20

Q5— Section header —

5.1Noem TWEE groepe hout wat in die produksie van houtpap gebruik word. (2\

5.2Skryf 'n kort beskrywing vir elk van die volgende areas in 'n boomstam.

5.2.1Bas

5.2.2Kambium

5.2.3Spinthout

5.2.4

5.3Voltooi die volgende diagram van 'n Kraft papproduksieproses deur die antwoord langs die letters (A J\ in die ANTWOORDBOEK te skryf. (10\ [20] TOTAAL: 10020

Mark Allocation

Total100 marks

Sections25 + 25 + 10 + 20 + 20 = 100 marks

Paper information

TitleDocument

SubjectProseschemie

LevelNCV Level 3

Document typeQuestion paper

Year2019

MonthNovember

Pages6

Downloads3

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayFriday

Exam periodNovember 2019

Days since exam2,537

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