Gebruik die vloeidiagram hieronder en antwoord die vrae wat volg - NSC Technical Sciences - Question 4 - 2020 - Paper 2
Question 4
Gebruik die vloeidiagram hieronder en antwoord die vrae wat volg.
4.1 Skryf die NAAM of TIPE reaksie neer wat deur die volgende letters verteenwoordig word:
4.1.1 ... show full transcript
Worked Solution & Example Answer:Gebruik die vloeidiagram hieronder en antwoord die vrae wat volg - NSC Technical Sciences - Question 4 - 2020 - Paper 2
Step 1
4.1.1 A
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Die reaksie verteenwoordig 'n toevoeging of hidrasie. Dit is 'n tipe reaksie waar 'n vloeistof aan 'n ander substansie geadd bestatword.
Step 2
4.1.2 B
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Die reaksie verteenwoordig 'n hidrohalogenering of hidrobrominering, waar 'n halied aan die stof toevoeg.
Step 3
4.1.3 C
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Die reaksie verteenwoordig 'n substidusiereaksie of halogenasie, waar 'n halied die plek van 'n ander atoom in die molekule inneem.
Step 4
4.2.1 Ander reagens (reaktans)
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Die ander reagens wat benodig word in reaksie A is water (H₂O).
Step 5
4.2.2 Katalisator
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Die katalisator wat benodig word is verdunbare swaelsuur (H₂SO₄) of verdunbare fosforsuur (H₃PO₄).
Step 6
4.3
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Die gebalanseerde chemiese vergelyking vir reaksie B is:
C2H4+HBr→C2H5Br
Step 7
4.4
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Twee reaksietoestande vir reaksie C is:
Matige temperatuur/warm temperatuur.
Geen water.
Step 8
4.5
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Die gebalanseerde vergelyking vir die reaksie van die alleen in die vloeidiagram is:
C2H4+3O2→2CO2+2H2O+energy
Step 9
4.6
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