Advertisements
Advertisements
Question
Place the metals calcium, iron, magnesium and sodium in order of their activity with water, placing the most active first. Write the equation for each of the above metals which react with Water.
Advertisements
Solution
Na Sodium 2Na + 2H2O → 2NaOH + H2
Ca Calcium Ca + 2H2O → Ca[OH]2 + H2
Mg Magnesium
Fe Iron
\[\ce{Mg +\underset{\text{(Boiling water)}}{H2O} -> MgO + H2}\]
\[\ce{3Fe + 4H2O (steam)⇌ Fe3O4 + 4H2}\]
APPEARS IN
RELATED QUESTIONS
What is hydrogenation?
Discuss the occurrence of hydrogen in the universe and on the earth ?
Describe two chemical properties of hydrogen with equations.
Under what conditions can hydrogen be made to combine with nitrogen?
Name the products and write the equation for the reaction.
Under what conditions can hydrogen be made to combine with oxygen?
Name the products and write the equation for the reaction.
State the following pertaining to the physical properties of hydrogen: Colour & odour
With reference to the uses of hydrogen, give reason for the following:
Hydrogen is not used in air balloons
With reference to the uses of hydrogen, give reason for the following:
Reaction of hydrogen with nitrogen under specific conditions finds industrial utility.
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen sulphide - H2 + S → ________
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Zinc oxide - ZnO + H2 → ________ + ______
