Advertisements
Advertisements
Question
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
Advertisements
Solution
Mg + 2H2O → Mg(OH)2 + H2
APPEARS IN
RELATED QUESTIONS
Name the following:
Two metals which give hydrogen with cold water.
Which metal is preferred for the preparation of hydrogen?
from water?
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Where does hydrogen occur in a free state?
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
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.
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
