The diagram below shows a set up of apparatus used to prepare oxygen gas and pass its vapour to burning candle. The experiment was allowed to run for several minutes. (i) Identify liquid M. (ii) Write an equation for the reaction that forms oxygen gas in the set up.

Huu hapa utatuzi wa maswali yako:

a) Step 1: Tambua vitendanishi. Mchoro unaonyesha peroksidi ya sodiamu ikitumiwa kutengeneza gesi ya oksijeni. Ili peroksidi ya sodiamu itengeneze oksijeni, inahitaji kugusana na maji. Step 2: Tambua kiowevu M. Kwa hiyo, kiowevu M kinachoongezwa kwenye peroksidi ya sodiamu ni maji.

Kiowevu M ni Maji ($\text{H}_2\text{O}$).

b) Step 1: Andika vitendanishi na bidhaa. Mwitikio ni kati ya peroksidi ya sodiamu na maji, na hutoa hidroksidi ya sodiamu na gesi ya oksijeni. $\text{Na}_2O_2(s) + H_2O(l) \rightarrow NaOH(aq) + O_2(g)$ Step 2: Sawazisha mlinganyo. Ili kusawazisha atomi za sodiamu, oksijeni, na hidrojeni pande zote mbili za mlinganyo, tunahitaji kuweka vizio sahihi.

$2Na_2O_2(s) + 2H_2O(l) \rightarrow 4NaOH(aq) + O_2(g)$

Mlinganyo wa mmenyuko unaotengeneza gesi ya oksijeni ni: $\boxed{2Na_2O_2(s) + 2H_2O(l) \rightarrow 4NaOH(aq) + O_2(g)}$

Tuma swali linalofuata 📸