Technical Sciences Memo 2 (English and Afrikaans)

November 2021 — Grade 12 / Matric — Technical Sciences

Memo 2021 Grade 12 Afrikaans

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🎯 75 marks 📄 7 pages 📝 31 items found 📚 1 topics

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1.12\

1.2(2\

1.3(2\

1.4(2\ (2\

2.1Hydrocarbon is an organic compound containing only carbon atoms and hydrogen

2.2(2\ .3 Methyl ethanoate Metiel etanoaat

2.4.1Alkane Alkaan (1\

2.4.2Ester (1\ 2. .1 Structural i somers are organic molecules with the same molecular formula

3.1.1

3.1.2(1\

3.1.3is a straight chain/un branch ed/has larger surface area /less sphe rical/has a longer chain length than

3.2.1and have the same chain length/number of carbon atoms here is only one independent

3.2.2(1\

3.2.3contains L ondon /dispers ion/induced dipole forces only , and

4.2.2Mild eat Sunlight/UV light (Matige\e /Sonlig

4.3.2Carbon d ioxide Koolstofdioksied Water OR OF CO

4.4.1Doping Do tering (1\

4.4.2Intri nsic semiconductor is a pure semiconductor Intrinsieke halfgeleier is 'n suiwer halfgeleier (2\

5.1.1Copper(II\ns Koper(II\one (1\

5.1.2Chloride ions Chloriedione (1\

5.2.1Positive (electrode\ Positiewe (elektrode\ (1\

5.2.2Negative (electrode\ Negatiew e (elektrode\ (1\

5.3Oxidation is the loss of electrons / an increase in oxidation number Oksidasie is die verlies van elektrone (2\

5.4+2e (2\ Marking criteria/ Nasienkriteria (g\ 2e

5.5Reducing agent is a substance that is oxidised/loses electrons. Accept: Reducing agent is a substance that undergoes oxidation. Reduseermiddel is 'n stof wat geoksideer is/elektrone verloor. Aanvaar: Reduseermiddel is 'n stof wat oksidasie ondergaan.

5.6Marking criteria/ Nasienkriter ia Correct electrolyte use (silver nitrate or silver acetate\ Ag electrode connected to the anode and a spoon (to be electroplated\ connected to the cathode

6.1.1

6.1.2Zn(s\+ Cu 2+ (aq\ Zn 2+ (aq\ + Cu(s\ NOTE: Do not penalise if phases are omitted

6.1.3ACCEPT any other relevant fo rmula on the data sheet Penalise 1 mark if unconventional abbreviation is used or there is omission in the formula. AANVAAR enige ander relevante formule op die datablad Penaliseer 1 punt as onkonvensionele afkorting gebruik word of as daar iets uit

6.2.1Reaction Reaksie (1\

6.2.2Magnesium is a stronger reducing agent than zinc ions therefore it will reduce zinc ions to zinc OR Zinc ions are weaker reducing agent that magnesium, therefore m agnesium will reduce zinc ions to zinc (metal\.

Topics Identified

Business Plan

Mark Allocation

Total75 marks

Sections13 + 10 = 23 marks

Paper information

SubjectTechnical Sciences

Year2021

SessionNovember

TypeMemo

PaperPaper 2

LanguageAfrikaans

Pages7

Downloads1

Examination context

Decade2020s

Years ago5y

SeasonSpring (SH)

Start dayFriday

Exam periodNovember 2021

Days since exam1,816

About Technical Sciences examination preparation

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