Advertisements
Advertisements
Question
Can we keep sodium immersed under water? Why?
Solution
No, we cannot keep sodium immersed in water because it reacts vigorously even with cold water to form sodium hydroxide, hydrogen gas and a huge amount of heat.
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) + HEAT
APPEARS IN
RELATED QUESTIONS
Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.
Write the electron-dot structures for sodium, oxygen and magnesium.
Complete and balance the following equation:
Cu (NO3)2 (aq) + Zn(s) →
Fill in the following blank with suitable word:
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ................. on the surface of aluminium.
With the help of examples, describe how metal oxides differ from non-metal oxides.
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with eater.
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Where does the metal aluminium, used in the process, occurs in the reactivity series of metals?
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
Write the chemical equation for the following reaction:
Cinnabar is heated in the presence of air.
