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Question
Complete and balance the equation:
[General method]
Reactions of metals with steam
Iron - 3Fe + 4H2O ⇌ ______+ _______ [g]
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Solution
Iron - 3Fe + 4H2O ⇌ Fe3O4+ 4H2 [g]
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Fill in the blank
Hydrogen is ...................soluble in water.
Multiple Choice Question
The metal which reacts with cold water to produce hydrogen is
How did the name 'hydrogen' originate?
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Complete and balance the following reaction.
Ca + H2O →_____________ +___________
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 with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
Name an element whsich reacts violently with water at room temperature.
State the electronic configuration of hydrogen [at. no. 1].e
Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table.
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
