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प्रश्न
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
उत्तर
Magnesium - Mg + 2HCl → MgCl2 + H2 [g]
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संबंधित प्रश्न
For laboratory preparation of hydrogen, give the following:
chemical equation
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
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A white substance which leaves an amphoteric oxide as a residue [whose colour varies in the heated and in the cold state] and evolves a gas which turns lime water milky.
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Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Potassium- K + H2O → ______+ ______ [g]
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [g]
Name an element whsich reacts violently with water at room temperature.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
