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CBSE › Class 9 › Science › Atomic Foundations of Matter (Class 9 NCERT New)
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1. The correct formula of sodium chloride

2. ASSERTION-The sum of the masses of the reactants is equal to the sum of the masses of the products .Reason-Matter is creatsed during a chemical reaction

3. The number of cations in a molecule of sodium sulphate is /are

4. When aqueous solutions of barium chloride and sodium sulphate react , the precipitate formed is

5. The atomic mass of carbon is

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