Uitleggen op microniveau havo scheikunde
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=i71VbPztAvg
Vaak gaat het om de uitleg op microniveau van eigenschap op macroniveau. Macroniveau is wat je kan zien/voelen/proeven etc. Microniveau gaat altijd over deeltjes niveau. Dat herken je aan het gebruik van woorden als atomen/moleculen/bindingen etc. Noem ook altijd de naam van de binding en beide deeltjes waartussen de binding zit. Gebruik begrippen op microniveau als een uitleg op microniveau wordt gevraagd; dus bijvoorbeeld geen ‘water’ maar ‘watermolecuul’. Oefen verder met deze vragen op examenblad.nl. • NIVEAU 1 • 2021-1 vraag 9 Leg uit of figuur 2 een weergave op microniveau is. (1p) • 2018-1 vraag 23 Leg uit of de structuur van lignine in figuur 1 een weergave op microniveau of op macroniveau (2p) • 2010-1 pilot vraag 9 Beargumenteer aan de hand van de regels 9 tot en met 11 of “pigmentdeeltjes” en “resten” worden bedoeld op microniveau dan wel op macroniveau. (2p) • NIVEAU 2 • 2021-2 vraag 32 Geef een kenmerk op microniveau en een eigenschap op macroniveau van een thermoplast. (2p) • 2021-3 vraag 9 Geef aan op macroniveau en op microniveau, waarom een thermoharder moeilijk te recyclen is. (2p) • 2021-3 vraag 26 Leg uit of het membraan dat is gemaakt van dit polymeer (dat is weergegeven in figuur 2) alleen positieve ionen of juiste alleen negatieve ionen doorlaat. (2p) • 2018-1 vraag 32 Leg uit op microniveau, aan de hand van figuur 1, dat water niet goed hecht aan ETFE. (2p) • 2018-1 vraag 34 Geef een verschil op microniveau en een verschil in stofeigenschappen. (2p) • 2017-1 vraag 2 Leg uit op microniveau, aan de hand van figuur 2, dat gadodiamide goed oplosbaar is in water. (2p) • 2016-2 vraag 5 Geef aan, aan de hand van de structuurformule van wijnsteenzuur, dat wijnsteenzuur goed oplosbaar is in water. Licht je antwoord toe op microniveau. (2p) • 2015-2 vraag 5 Beschrijf op microniveau wat er gebeurt bij het ontsnappen van lucht uit een band. (2p) • 2014-1 pilot vraag 7 Leg uit op microniveau (deeltjesniveau) waardoor methaan en water onder normale omstandigheden slecht mengen. (2p) • NIVEAU 3 • 2021-1 vraag 26 Leg uit waardoor een weekmaker ervoor zorg dat ammoniak gemakkelijker uit de kleurlaag vrijkomt. Formuleer je antwoord op microniveau. (2p) • 2018-2 vraag 16 Leg uit waarom door toevoeging van paraffine de kauwgom beter vervormbaar wordt. Gebruik in je antwoord begrippen op microniveau en de naam van het type binding dat verzwakt wordt. (3p) • 2017-1 vraag 27 Leg uit aan de hand van figuur 1, waarom Stanyl een hogere smelttemperatuur heeft dan nylon-6,6. Ga ervan uit dat Stanyl en nylon-6,6 dezelfde gemiddelde ketenlengte hebben. (2p) • 2016-2 vraag 11 Leg uit dat crosslinks ontstaan wanneer polymerisatie optreedt in een mengsel van acrylzuur en TAPE. 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