Ábhair Rangaithe (Classifying Materials) Flashcards

1
Q

Cad é ábhar (matter)?

A

Substaint nó substaintí arb é atá ina réad fisiceach

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2
Q

2 páirteanna de ábhar?

A
  1. Substaintí íon
  2. Meascáin
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3
Q

2 páirteanna de substaintí íon (pure) + 2 sampla?

A
  1. Comhdhúile (uisce, salann)
  2. Eilimintí (Hidrigin, Carbón)
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4
Q

2 páirt de meascáin + 2 sampla?

A
  1. Meascáin aonchineálacha (Réitigh, cóimhiotail)
  2. Meascáin ilchineálacha (Gaineamh, salachar)
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5
Q

Cad é substaint íon?

A

Substaint atá déanta as cáithníní díreach mar an gcéanna lena chéile

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6
Q

Cad e meascáin?

A

Dhá cháithnín éagsúla nó níos mó measctha le chéile

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7
Q

Cad is meascán aonchineálach (homogenous) ann?

A

Meascán a bhreathnaíonn mar an gcéanna ar fud, ach a bhfuil comhpháirteanna éagsúla aige

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8
Q

Cad is meascán ilchineálach (heterogeneous) ann?

A

Meascán ina bhfuil na comhpháirteanna scartha go fisiciúil agus nach n-athraítear a n-airíonna ceimiceacha

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9
Q

2 airíonna de meascán?

A
  1. Níl aon teas ag teastáil chun meascán a chruthú.
  2. Tá sé éasca na codanna de mheascán a scaradh
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10
Q

Cad é eilimint?

A

Substaint íon nach féidir a mhiondealú ina substaint níos simplí

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11
Q

Cad é comhdhúil?

A

Substaint íon atá déanta as dhá dhúil nó níos mó atá cumaiscthe go ceimiceach

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12
Q

2 airíonna de comhdhúil?

A
  1. Tá teas ag teastáil chun comhdhúil a dhéanamh
  2. Tá sé deacair na codanna de chomhdhúil a scaradh
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13
Q

Difríocht idir meacáin agus comhdhúil?

A

Níl meascán measctha go ceimiceach, tá comhdhúil

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14
Q

Cad é athrú fisiciúil?

A

Athrú nach ndéantar aon substaint nua ann

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15
Q

Cad é athrú ceimeacach?

A

Athrú i gcás ina bhfuil substaint nua ann

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16
Q

3 sampla de athrú fisiciúil?

A
  1. Canna a bhrú
  2. Leá oighir
  3. Gaineamh agus uisce a mheascadh
17
Q

3 sampla de athrú ceimeacach?

A
  1. Iarann agus sulfar a dhéanann suilfíd iarainn
  2. Ubh a chócaráil
  3. Dó adhmaid