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secondary 4 | E Maths
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Jessica
Jessica

secondary 4 chevron_right E Maths chevron_right Singapore

Combined chemistry question. Sorry really need help on this :’(

Date Posted: 1 year ago
Views: 117

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Jia
Jia's answer
1 answers (A Helpful Person)
1st
NH3 (aq) is alkaline so it will turn red litmus paper blue.
H2SO4 is acidic so it will turn blue litmus paper red.
When (NH4)2SO4 reacts with WARM NaOH, NH3 (g) is formed.
The most common white ppt with a sulfate is BaSO4 so you should consider this ppt first before working back to figure out the other compounds.
Jessica
Jessica
1 year ago
Thank u so much