https://padlet.com/niko_sarlija/hzp431i1mslog5c6 Umna mapa - kemija en-us 2020-04-19 13:51:35 UTC 2024-05-31 04:34:39 UTC hello@padlet.com https://padlet.net/icons/png/1f4a1.png niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515421935 2020-04-19 14:06:32 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515421935 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515448427 Zagrijavanjem led se tali pa nastane voda. Zagrijavanjem vode do ključanja nastane vodena para, a njezinom kondenzacijom ponovno se dobije voda. Led, voda, vodena para, to je jedna te ista tvar, samo u različitim agregacijskim stanjima.]]> 2020-04-19 14:26:50 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515448427 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515469757 NE NASTAJE NOVA TVAR!]]> 2020-04-19 14:43:04 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515469757 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515473968 Usitnjavanje gline u tarioniku primjer je fizikalne promjene.]]> 2020-04-19 14:46:01 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515473968 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515485326 prevođenje neke tvari u otopinu, pri čemu se otopljena tvar kemijski ne mijenja.]]> 2020-04-19 14:54:07 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515485326 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515562215 2020-04-19 15:46:40 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515562215 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515566453

promjenom temperature i tlaka tvarima možemo mijenjati agregacijska stanja

]]> 2020-04-19 15:49:20 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515566453 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515571218

homogena smjesa

vodena otopina slatka okusa

šećeru se otapanjem nije promijenio kemijski sastav

]]> 2020-04-19 15:52:40 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515571218 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515582160 2020-04-19 15:59:29 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515582160 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515587339 2020-04-19 16:02:52 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515587339 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515591791 2020-04-19 16:05:54 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515591791 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515594692 Temperatura pri kojoj neka tvar prelazi iz tekućega u čvrsto agregatno stanje. Ovisi o tlaku, ali se u tablicama za pojedine tvari obično navode vrijednosti ledišta kod normalnoga tlaka (101 325 Pa). Pod većim tlakom ledište se snizuje, a pod manjim povisuje.]]> 2020-04-19 16:07:50 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515594692 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515595022 Temperatura pri kojoj neka tvar prelazi iz čvrstoga u tekuće agregatno stanje. Ovisi o tlaku, ali se u tablicama za pojedine tvari obično navode vrijednosti tališta kod normiranog atmosferskoga tlaka (101 325 Pa). Pod većim tlakom talište se snizuje, a pod manjim povisuje]]> 2020-04-19 16:08:01 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515595022 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515595291 Temperatura na kojoj istodobno u cijelom volumenu tvar prelazi iz tekućega u plinovito agregatno stanje, tj. najviša temperatura na koju se pri određenom tlaku može zagrijati tekućina. S povećanjem tlaka vrelište se povećava, a sa smanjenjem smanjuje.
VODA VRIJE ILI KLJUČA.]]> 2020-04-19 16:08:12 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515595291 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515624592

promjene u kojima nastaju nove tvari 

nastaju zbog različitih kemijskih svojstava tvari

Ljuska jajeta  sastoji se od  kalcijeva karbonata. Otapa se u octu i pritom nastaje plinoviti ugljikov dioksid.

]]> 2020-04-19 16:27:37 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515624592 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515635146 su ona svojstva tvari zbog kojih nastaju nove tvari drukčijih svojstava npr. zapaljivost, raspadanje pod utjecajem topline ili svjetlosti, sposobnost kemijskog reagiranja – reaktivnost, nepostojanost na zraku i dr.]]> 2020-04-19 16:35:11 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515635146 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515647854 2020-04-19 16:44:07 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515647854 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515652118 Tvar drugačijih kemijskih i fizikalnih svojstava od željeza.]]> 2020-04-19 16:47:10 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515652118 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515655671 Most je zbog stalne izloženosti kapljicama mora na nekim mjestima počeo hrđati.]]> 2020-04-19 16:49:29 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515655671 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515670018 2020-04-19 17:00:03 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515670018 niko_sarlija https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515672032 2020-04-19 17:01:40 UTC https://padlet.com/niko_sarlija/hzp431i1mslog5c6/wish/515672032