Oxidationstal Flashcards

(10 cards)

1
Q

Enatomiga joner

A

Oxidationstal lika med jonladdningen. T.ex. Na+ –> +1, Al3+ –> +3

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2
Q

Grundämnen i fri form

A

Har alltid oxidationstal 0. Exempel; H2, O2, Cl2

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3
Q

Summan av alla oxidationstal i en neutral föreningar?

A

0, t.ex. H2O –> (+1)*2 + (-2) = 0

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4
Q

Summan i en polyatomisk jon?

A

Jonens laddning

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5
Q

Grupp 1 (alkalimetaller)

A

+1Na+, K+

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6
Q

Grupp 2 (jordalkalimetaller)

A

+2. T.ex. Mg2+, Ca2+

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7
Q

Fluor (F)

A

Alltid -1

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8
Q

Syre (O)

A

Oftast -2, men -1 i peroxider (t.ex. H2O2) och +2 i OF2. H2O –> O = -2

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9
Q

Väte (H)

A

+1 med icke-metaller, -1 med metaller (hydrider). H2O –> +1, NaH –> -1

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10
Q

Halogener (Cl, Br, I)

A

Oftast -1 men kan vara positiva när de binds med syre eller fluor. Cl- = -1, Cl i HClO3 = +5

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