kushlord
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(Sep 16 2014 at 05:11pm)
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bigDoc
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(Sep 17 2014 at 09:34am)
I can no longer afford to send answer for free! though u can get it on this topic.
here is chemistry
(2ai)
Inference: Soluble salts
(2aii)
Observation: White precipitate
(2aiii)
Observation: Insoluble in excess
(2aiv)
Observation: insoluble excess
Inference: Na+ present
(2bi)
Inference: Zn??2+, Al??3+, Pb??2+
present
(2bii)
Inference: Al??3+, Pb??2+ present
(2biii)
Observation: black precipitate is formed
and precipitate dissolve
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bigDoc
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(Sep 17 2014 at 09:34am)
(3ai)
Measuring cylinder
(3aii)
Kipp’s Appararatus
(3aiii)
Separating funnel method
(3b)
i. It turns blue litmus paper red
ii. It turnsred litmus paper to blue
iii. colours remain unchanged
(3c)
i. AgNo3/NH3
ii. NaHCO3
iii. I2/NaoH
(3d)
i. carbon(iv)oxide, carbon(ii)oxide
ii. Aluminium(III)oxide, Iron(III)oxide
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vandammj
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(Sep 17 2014 at 07:44pm)
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bigDoc
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(Sep 18 2014 at 01:38am)
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Mani14
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(Sep 18 2014 at 06:10am)
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Mani14
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(Sep 18 2014 at 06:12am)
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