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Question
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
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Solution
Zinc - Zn + 2HCl → ZnCl2 + H2 [g]
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method of collection
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Zinc granules are used in the lab preparation of hydrogen.
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A divalent metal
Why are the following metal not used in the lab. preparation of hydrogen?
iron
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Correct the following statement:
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Starting from hydrogen gas how would you obtain a basic gas.
State why hydrogen is not prepared in the laboratory by the action of sodium with cold water.
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
