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Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Write the chemical formula using criss-cross method:
Ammonium sulphate.
✓

Answer

Ammonium sulphate (NH4)2 + (SO4)1
Cross multiply (NH4)1 (SO4)2 = (NH4)2SO4

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