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An alloy of zinc, magnesium, and copper contains 80% of copper, 15% of zinc, and 5% of magnesium. The second alloy of copper and magnesium only is melted with the first and the mixture contains 75% of copper, 5% of zinc and 20% of magnesium. What is the percentage of magnesium in the second alloy?
Which of the following are characteristics/properties of permanent hardness in water? (A) Presence of bicarbonates of calcium and magnesium (B) Presence of sulphates of calcium and magnesium (C) Forms good lather when comes in contact with soap (D) Presence of chloride of calcium and magnesium (E) Can be removed by boiling the water Choose the correct answer from the options given below :
In a magnalium alloy, the ratio of magnesium and aluminium in a 72 kg alloy is 5 ∶ 4. Some amount of magnesium is extracted from the alloy and the ratio becomes 7 ∶ 8, how much magnesium is extracted?
The atomic number of magnesium is 12 and mass number is 24. Which one of the following is the correct representation of the ion formed from it and its valency?
The atomic number of magnesium is 12. What will be its valency?
The ratio of mass of magnesium:sulphur in magnesium sulphide is
Magnesium hydroxide, obtained when Magnesium oxide is dissolved in water is
Adding of zirconium in magnesium metal results in the formation of magnesium-zirconium alloy of enhanced ductility.
If the reactant Magnesium reacts with Reactant Hydrochloric acid to form the product Magnesium chloride + Hydrogen, then what will be the atomic mass of both the product?
Calculate the mass percent of magnesium in the formation of magnesium oxide.