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Chemistry, 28.10.2020 16:30, ianmartin6080
Stabileste daca propietatile substantelor din enunturi sunt fizzice sau chimice. a) Apa se descompune in doua subst gazoase , oxigen si hidrogen, cu ajutorul curentului electric. b)Heliul, gazul folosit la umplerea baloanelor, este de 14,45 ori mai usor decar aerul. c)Oxigeul se dizolva partial in apa, fapt dovedit prin existenta vietii subacvactice d)Dioxidul de carbon nu arde si nu intertine arderea, de accea se foloseste la producerea unor stringatoare de incendiu
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Stabileste daca propietatile substantelor din enunturi sunt fizzice sau chimice. a) Apa se descompun...
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