Keemia: Question Preview (ID: 15819)

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Milline neist on oksiid?
a) H2SO4
b) CaO
c) Ca(OH)2
d) NaCl

Milline neist on hape?
a) FeCl3
b) KOH
c) H2SO4
d) Na2S

Milline neist on alus?
a) FeCl3
b) H2S
c) H2SO3
d) LiOH

Milline neist on sool?
a) Na2CO3
b) H3PO4
c) H2CO3
d) Ca(OH)2

3Ca(OH)2+2H3Po4 = ?
a) ?=CaPO4 + H2O
b) Ca3(PO4)2 + 6H2O
c) Ca3(PO4) + H2O
d) CaPo4 +H2O

Millised metallid reageerivad HCl - iga?
a) Pt
b) Hg
c) Au
d) Zn

Mis olekus on tavatingimustes Hg ?
a) vedel
b) gaasiline
c) tahke
d) ei tea

Vask ?
a) Co
b) Cr
c) Cu
d) Cd

N2O3 ?
a) dilämmastiktrioksiid
b) trilämmastikdioksiid
c) tetralämmastikpentaoksiid
d) dilämmastikpentaoksiid

H2SO4 ?
a) sulfiidhape
b) väävlishape
c) Väävelhape
d) izopropanool

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