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ID number:339233
 
Evaluation:
Published: 21.12.2010.
Language: Latvian
Level: Elementary school
Literature: 4 units
References: Not used
Extract

Fizikālās īpašības
1.B grupas metāls
Labs siltuma, elektrības vadītājs
Vidēji kūstošs metāls
Krāsa sarkani oranži brūna
Polikristāls

Ķīmiskās īpašības
Ķīmiski neaktīvs metāls.
Reaģē ar sāļu ūdens šķīdumiem:
Fe + CuSO4 -> Fe SO4 + Cu
Reaģē ar skābekli:
2Cu + O2 -> 2CuO vai 4Cu + O2 -> 2Cu2O
Reaģē ar visiem halogēniem:
Cu + Cl2 -> CuCl2 vai 2Cu + Br2-> 2CuBr
Reaģē ar oksidējošām skābēm:
2Cu + 2HNO3 -> Cu(NO3)2 + H2
Iedarbojas amonjaka ūdens skābekļa klātbūtnē:
2Cu + 8NH3 + 2H2O + O2 2[Cu(NH3)4](OH)2

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