File:DSC01976 - Calcium (II) reactions.JPG

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English: Reactions of Calcium(II)-nitrate. From left to right:

With Na2CO3: Ca2+ + (CO3)2- -> CaCO3(s) (white precipitation of chalk)

With NaOH: the slight milky shade probably is because of side reactions; perhaps CO2 from air -> chalk.

With H2SO4: Ca2+ + (SO4)2- -> CaSO4(s) (white precipitation of gypsum)
Deutsch: Reaktionen mit Calcium(II)nitrat. Von links nach rechts:

Mit Na2CO3: Ca2+ + (CO3)2- -> CaCO3(s) (weißer Kalk-Niederschlag)

Mit NaOH: die leicht milchige Trübung stammt vermutlich aus Nebenreaktionen durch Verschmutzung; eventuell CO2 aus der Luft -> Kalk.

Mit H2SO4: Ca2+ + (SO4)2- -> CaSO4(s) (weißer Gips-Niederschlag)
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Author Tubifex

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current18:41, 21 December 2009Thumbnail for version as of 18:41, 21 December 20091,296 × 1,453 (488 KB)Tubifex (talk | contribs){{Information |Description={{en|1=Reactions of Calcium(II)-nitrate. From left to right: With Na2CO3: Ca2+ + (CO3)2- -> CaCO3(s) (white precipitation of chalk) With NaOH: the slight milky shade probably is because of side reactions; perhaps CO2 from air

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