Notifications
Clear all
Acids, bases and salt
1
Posts
2
Users
0
Likes
304
Views
0
08/09/2021 11:14 am
Topic starter
Hydrochloric acid reacts with a metal X to form a gas Y which bums with a ‘pop’ sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.
(a) Name X and Y
(b) Write the chemical equation of the reaction of metal X with (i) hydrochloric acid, and (ii) sodium hydroxide solution.
1 Answer
0
08/09/2021 11:20 am
(a) X is zinc metal; Gas Y is hydrogen gas.
(b) Zn(s) + 2HCl → XnCl2 + H2(g)
zinc Hydrochloric acid Zinc chloride Hydrogen
(ii) 2NaOH(aq) + Zn(s) + Heat → Na2ZnO2(aq) + H2(g)
Sodium Hydroxide Zinc Sodium Zincate Hydrogen