Q. If atomic mass of copper is 63.546, mass percent of copper in Cu₂O will be

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Q. NH₄ has

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Q. Expression of ratio of combining number of atoms or ions is called as

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Q. Acids are always

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Q. Molar mass of Calcium Carbonate CaCO₃ is

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Q. In Sulfuric Acid (H₂SO₄), chemical composition of sulfur is

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Q. When Sodium Hydroxide (NaOH) reacts with Copper Sulfate (CuSO₄), spectator ions will be

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Q. Formula of Sodium Hydroxide is

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Q. When magnesium ions (Mg+2) react with Nitric acid (HNO₃), resulting Magnesium Nitrate (Mg(NO₃)₂) will be

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Q. State symbols include

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Q. In Sulfuric Acid (H₂SO₄), chemical composition of Hydrogen (H) is

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Q. Formula of Nitrogen Trichloride (NCl₃) is

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Q. Formula of tetra chloromethane is

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Q. In Na₂CO₃.10H₂O, percentage of sodium is

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Q. Formula of Nitric Acid is

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Q. Consider CaCO₃ and HCl as reactants, how many molecules of CaCl₂ will be formed in products

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Q. Spectator ions,

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Q. Al+3 indicates that

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Q. In one molecule of Sulfuric Acid (H₂SO₄),

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Q. Valency of nitrogen can be

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