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Calcium Carbonate (CaCO3) commonly known as Limestone, Marble, Chalk.
1 Answers 1 views(i) Iron react with steam to form the metal oxide and hydrogen. 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) (ii) The reaction of calcium with water is exothermic but the heat evolved...
1 Answers 1 viewsAnswer : The element with atomic number 12 has same chemical properties as that of calcium. This is because both of them have same number of valence electrons (2).
1 Answers 1 viewsSolution: Significance of sodium and potassium in biological fluids: K+ and Na+ cations are present in the red blood cells. The ratio of K+ to Na+ ions in mammals such as human beings, rabbits, rats and horses is 7:1.
1 Answers 1 viewsThe process of sublimation is used to separate a mixture of camphor and calcium sulphate. In this process, the sublimable compound changes from solid to vapour state without passing through...
1 Answers 2 views(b) calcium and phosphorus
1 Answers 1 views(a) Magnesium chloride →MgCl2 (b) Calcium oxide →CaO (c) Copper nitrate →Cu(NO3)2 (d) Aluminium chloride →AlCl3 (e) Calcium carbonate →CaCO3
1 Answers 2 views(a) Chemical change (b) Acidic and basic solutions can be prepared by dissolving the products of the above process in water CaO+H2O →Ca(OH)2 (basic solution) CO2 + H2O→H2 CO3 (acidic solution)
1 Answers 1 views