rugstys ir bazes Flashcards

1
Q

rugstis?

A

medziaga,kurios vandeniame tirpale yra h+aq vandenilio jonu, ph maziau negu 7

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2
Q

vandenilio chlorido(druskos rugstis)?

A

HClaq tirpalas vandenyje,did. omega 37%
ruksta dregname ore
padeda zmogui virskinti maista
lietuvoje negaminama

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3
Q

sieros rugstis?

A

H2SO4,bespalvis klampus skystis,omega 95-98%
is oro sugeria H20
skiedziant H2SO4 pavirsiuje susidares tirpalas gali susprogdinti inda

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4
Q

azoto rugstis?

A

HNO3,bespalvis astraus kvapo skystis, omega-60%
oksiduoja daugeli medziagu
reaguoja su baltyminemis medziagomis
ardo vilna,silka

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5
Q

fosforo rugstis

A

H3PO4,kieta kristaline medziaga, omega 85%
gerai tirpsta vandenyje
nelaki,nenuodinga
naudojama konditerijos gaminiuose

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6
Q

indikatorius

A

medziagos, kurios rugsciu ir baziu tirpaluose keicia spalva

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7
Q

lakmuso spalvos? rugstine, neutrali ir bazine?

A

rugst.-raudona, neutrali-melyna, bazine-violetine

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8
Q

fanolftaleinas?rugstine, neutrali ir bazine?

A

rugstn..-bespalvis, neutrali- bespalvis, bazine-avietine

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9
Q

metilorandzinis?rugstine, neutrali ir bazine?

A

rugstn- raudona,rozine, neutrali orandzinis, bazine- geltona

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10
Q

universalusis?rugstine, neutrali ir bazine?

A

rugstn.-raudonas,neutralus-gelsvai zalias,bazinis-zalsvai melynas

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11
Q

bazes?

A

medziagos, kuriu vandeniniame tirpale yra OH- jonu,ph daugiau uz 7

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12
Q

natrio hidroksidas?

A

natrio sarmas, NAOH,balta kristaline medziaga.
kietam muilui
sugeria dregme
gerai tirpsta vandenyje

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13
Q

kalio hidroksidas?

A

KOH
kieta balta medziaga
tirpalas smarkiai putoja
skystam muilui gaminti

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14
Q

kalcio hidroksidas?

A

gesintos kalkes, Ca(OH)2, birus milteliai
menkai tirpsta vandenyje
naudojamas statybose

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15
Q

ph?

A

vandenilio jonu rodiklis,parodantis tirpalo rugstingumo laipsni

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