Chemistry, asked by riyajain11, 10 months ago

Write balanced chemical equation for the following reaction:
(a) When copper is heated in air.

(b) When aluminium is heated in air.

(c) Aluminium oxide reacts with Sodium hydroxide.

Answers

Answered by Anonymous

a. 2Cu + O2 gives 2CuO.

b. 4Al + 3O2 gives 2Al2O3.

c. Al2O3 + 2NaOH gives 2NaAlO2 + H2O.

c.Explanation: When aluminium oxide reacts with sodium hydroxide,it gives sodium aluminate and water.

Kindheart: Di can you explain me 3 one

Anonymous: yes dear

Kindheart: explain me and report my answer

Anonymous: ok.....i explained on my answer itself.. check it

Kindheart: OK

Kindheart: why it is not double displacement reaction

Anonymous: everytime it won't be that......in this reaction it gives sodium @aluminate

Anonymous: bcoz this reaction takes place at high temperature... about 900 to 1000degree Celsius

Kindheart: this question is of which class

Answered by Kindheart

Answer:

HOPE THIS HELPS YOU.

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Anonymous: no need of reporting ur answer,u can edit it.

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