Chemie Flashcards

1
Q

Aktiverings energie

A

Minimum energie benodig om ‘n reaksie te begin of die energie benodig om ‘n geaktiveerde kompleks te vorm.

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2
Q

Entalpie

A

Totale gestoorde Ep van die reagense/produkte.

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3
Q

Reaksiewarmte

A

netto verandering in die chemiese Ep van die sisteem.

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4
Q

Geaktiveerde kompleks

A

‘n hoë energie tydelike oorgangspunt tussen reaggense en produkte.

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5
Q

Katalisator

A

‘n stof wat die tempo van die reaksie verhoog maar onveranderd bly aan die einde van die reaksie.

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6
Q

Eksotermies

A

Reaksie wat Ep verander in termiese energie.

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7
Q

Endotermies

A

Reaksie wat termiese energie verander in Ep

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8
Q

Oksidasiegetal

A

(waarskeinlike) lading indien alle bindings elektron oordrag bevat.

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9
Q

Sterk suur

A

Suur wat heeltemal ioniseer in ‘n waterige oplossing.

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10
Q

Swak suur

A

Suur wat slegs gedeeltelik ioniseer in ‘n waterige oplosing.

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11
Q

Ionisasie

A

Reaksie van molekulere stof om ione te produseer.

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12
Q

Disossiasie

A

Die splyting van ioniese verbinding na sy ione.

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13
Q

Sterk basis

A

Basis wat ten volle disosieer in ‘n waterige oplossing.

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14
Q

Swak basis

A

Basis wat sleg gedeeltelik disosieer in ‘n waterige oplossing.

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15
Q

Indikator

A

Chemiese binding wat van kleur verander afhangende van of dit in ‘n alkaliese meduim of ‘n suur geplaas word

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16
Q

Titrasie

A

om te bepaal deur ‘n standaard oplossing te gebruik.

17
Q

Standaard oplossing

A

Oplossing waarvan die konsentrasie bekend is.

18
Q

oksideermiddel

A

stof wat elektrone ontvang

19
Q

reduseermiddel

A

stof wat elektrone verloor.